Seediscussions,stats,andauthorprofilesforthispublicationat: https://www.researchgate.net/publication/263531121 DiagnosingDiscrimination: StressfromPerceivedRacism andtheMentalandPhysical HealthEffects* ArticleinSociologicalInquiry·February2013 ImpactFactor:0.79·DOI:10.1111/j.1475-682X.2012.00433.x CITATIONS READS 8 285 1author: KathrynFreemanAnderson TheUniversityofArizona 6PUBLICATIONS18CITATIONS SEEPROFILE Availablefrom:KathrynFreemanAnderson Retrievedon:12May2016 Diagnosing Discrimination: Stress from Perceived Racism and the Mental and Physical Health Effects* Kathryn Freeman Anderson, University of Arizona Differences in health between racial groups in the United States are significant and persistent. Many studies have documented these differences as a result of a variety of different social factors. An emerging emphasis is the impact of racism in its various forms on physical and mental health. Social stress theory conceptualizes racism as a social stresssor which can produce negative health consequences for racial minorities. This study uses binary logit and negative binomial regression models of four items from the 2004 Behavioral Risk Factor Surveillance System (BRFSS) to test social stress theory and examine the relationship between stress symptoms from perceived racism and overall health (N = 32,585). The effect of race on the experience of emotional and physical stress symptoms from racism is substantial. Furthermore, experiencing both emotional and physical stress from perceived racist treatment is an important factor in predicting the number of poor mental and physical health days, indicating that the experience of stress from perceived racism is related to overall poorer health. Introduction A well-established body of literature focuses on documenting the differences in health between racial groups in the United States (Williams 1999). Several approaches for understanding why such disparities in health exist are prevalent throughout this literature (Dressler, Oths, and Gravlee 2005; Hummer 1996). A more recent focus of this research emphasizes how the various mechanisms of racism can impact health for certain racial minorities in the United States (Dressler, Oths, and Gravlee 2005; Hummer 1996). Numerous studies now demonstrate a relationship between racism and a variety of both mental and physical health outcomes (Paradies 2006; Williams and Mohammed 2009). With this study, I provide further evidence of how the stress of perceived discrimination can impact general mental and physical health. The first portion of this study examines the determinants of emotional and physical stress from perceived racism and addresses the question: How does being a racial minority affect the experience of emotional or physical stress from perceived racism? I hypothesize that being a racial minority will be associated with a greater likelihood of experiencing stress from perceived Sociological Inquiry, Vol. xx, No. x, 2012, 1–27 2012 Alpha Kappa Delta DOI: 10.1111/j.1475-682X.2012.00433.x 2 KATHRYN FREEMAN ANDERSON racism. The second portion of this study analyzes the relationship between stress symptoms and health and seeks to answer the following question: Is the experience of emotional or physical stress from racist treatment related to overall poorer mental and physical health? I hypothesize that the stress symptoms produced from perceived racist treatment will be associated with overall poorer health outcomes. With this study, I contribute to this growing body of literature demonstrating a relationship between racism and a variety of negative health outcomes. I utilize social stress theory as a conceptual framework and contend with prior critiques of the theory for studying the association between stress and racial health disparities (Schwartz and Meyer 2010). To accomplish this, I use the 2004 version of the Behavioral Risk Factor Surveillance System (BRFSS), which provides a unique set of survey items on the emotional and physical stress symptoms that one may experience in response to perceived racism. Through these survey items, rather than studying the direct effects of racism, this study analyzes the experience of stress in response to perceived racism and relates the stress experience to overall poorer health outcomes. I also use poor physical and mental days as the main health outcome, which is an outcome seldom used in the current literature on the topic. From these theoretical and methodological advantages, I provide further evidence of the relationship between the stress that perceived racism may elicit and its overall effect on general health. Conceptual Framework Racism and Health Differences in health outcomes by race are well documented, and several theoretical approaches have emerged for understanding why these differences persist: genetics, cultural and behavioral practices, or socioeconomic status (Dressler, Oths, and Gravlee 2005; Hummer 1996). While these theoretical approaches are not mutually exclusive, the studies on the subject tend to emphasize one primary approach. Racial health disparities need to be analyzed and understood by taking into account the social conditions which created them and the hostile racial climate of the United States which allows such conditions to flourish. They need to be understood, ‘‘not only in terms of individual characteristics but also in light of patterned racial inequalities in exposure to societal risks and resources’’ (Williams and Braboy Jackson 2005:325). A fourth theoretical approach emphasizes the impact of racism and racist structures within society as a central explanatory factor for racial differences in health. Only until fairly recently has racism in its numerous forms been considered an important theoretical approach for our understanding of the STRESS FROM RACISM AND THE HEALTH EFFECTS 3 sources of racial health disparities. This research examines the effect of perceived racism as one explanatory factor for the significant disparities in health by race and contributes to this growing body of research which demonstrates the connection between racism and a variety of health outcomes. Racism is manifested in a number of different ways and across different dimensions. It can be institutional, structural, individual, or internal. Racism is the systematic disadvantage of certain groups, as well as the systematic privilege of the dominant group (Fujishiro 2009; Paradies 2006). Institutionally, racism is pervasive throughout the systems of housing, education, the judicial system, employment, and the healthcare system (Shavers and Shavers 2006). Individual racism may take the more overt forms of social avoidance and social exclusion, discrimination in the workplace, stigmatization, or harassment and threat (Brondolo et al. 2009; Shavers and Shavers 2006), or it may take the less-perceptible forms such as attitudes and beliefs against minorities in the form of ‘‘micro-aggressions’’ (Sue et al. 2007). Racism can also be internalized, where racial minorities accept the racist attitudes and stereotypes about themselves (Paradies 2006). Although this study does not focus on any particular manifestation of racism, the focus is on the stress that may result from perceived racism. Much recent work has been conducted analyzing the various ways which these sources of racism may impact health. Racism is negative event or chronic experience which may produce a variety of reactions from those who are subject to it. Williams and Mohammed (2009:21) write that, ‘‘targets of discrimination are aware of some of the discriminatory behavior directed at them and these perceptions of unfair treatment can generate stress.’’ A strong emphasis in the empirical literature on the subject is the psychological impact of individual-level perceived racism (Williams and Mohammed 2009). These studies suggest that racism may be a mental stressor which acts to harm mental as well as physical health (Kwate et al. 2003; Okazaki 2009; Paradies 2006; Peters 2006; Williams and Williams-Morris 2000). Stress has been shown to accelerate cellular aging, which can wear down the body’s systems and produce a variety of illnesses and premature mortality (Williams and Mohammed 2009). Additionally, racism as a stressor may also impact health in that it may serve to prompt unhealthy coping behaviors such as eating, or substance abuse in the form of smoking, drinking, and drug use (Brondolo, Gallo, and Myers 2009; Brondolo et al. 2009; Kwate et al. 2003; Paradies 2006). Numerous empirical studies document particular physical impacts on health from racism (Williams and Mohammed 2009). To cite a few specific examples, Kwate et al. (2003) found a relationship between short-term and long-term racism and perceived health, lifetime disease, and the common cold 4 KATHRYN FREEMAN ANDERSON in addition to psychological distress. Perceived racism is also linked to weight gain for African American women, as demonstrated in Vines et al.’s study (2007) on abdominal fat and Cozier et al.’s study (2009) on obesity. Gee and Walsemann (2009) found a relationship between racial discrimination and work-related health limitations, and Fujishiro (2009) found an association between racial disadvantage in the workplace and generally poorer health. Many of these studies, though, include an emphasis on emotional or mental health as a pathway to physical symptoms (Cozier et al. 2009; Kwate et al. 2003; Vines et al. 2007). Similarly, this study contributes to this literature by conceptualizing racism as a social stressor which can impact both mental and physical health. Social Stress Social stress theory emphasizes the social sources of stress factors which may impact mental and physical health outcomes (Aneshensel 1992; Pearlin 1989). The theory argues that certain groups within society are in a disadvantaged social position, which leads to an increased exposure to social sources of stress and less resources with which to cope with stress (Aneshensel 1992; Dressler, Oths, and Gravlee 2005). Aneshensel (1992:16) defines stress as ‘‘internal arousal’’ and stressors as ‘‘external circumstances that challenge or obstruct.’’ Social stress theory highlights these ‘‘external circumstances’’ of social life (Aneshensel 1992). These factors can then lead to higher prevalence of health problems within those populations with social disadvantage (Aneshensel 1992; Pearlin 1989). This study examines race as one such source of disadvantaged social position which can impact health. Of note, not all racial and ethnic minority members experience this disadvantage or experience it uniformly. However, minority status in U.S. society places one in a disadvantaged position at risk for discrimination and social stress. Schwartz and Meyer (2010), in a recent article, are critical of the social stress model for studying racial health disparities. Schwartz and Meyer (2010) provide a conceptual model for social stress theory which involves two main pathways, the second of which consists of two parts. The first pathway demonstrates a relationship between race and negative health outcomes (Schwartz and Meyer 2010). The second pathway demonstrates a relationship between race and stress, and then furthermore between stress and negative health outcomes (Schwartz and Meyer 2010). They argue that researchers must test all three of these pathways to provide evidence for the social stress model (Schwartz and Meyer 2010). They argue that most studies of social stress and discrimination only examine either the first pathway between race and health outcomes through between-group analyses, or the third part of the model examining stress and mental disorder through within-group analyses (Schwartz STRESS FROM RACISM AND THE HEALTH EFFECTS 5 and Meyer 2010). They argue that studies fall short by failing to consider the complete pathway by demonstrating a relationship between race and stress, and subsequently the impact of such stress on health outcomes (Schwartz and Meyer 2010). This study fills this gap presented by the Schwartz and Meyer criticism and examines both of these components of the social stress conceptual model by first examining whether or not being a racial minority leads to higher incidence of reported stress symptoms and then whether or not the experience of these symptoms leads to overall reduced health.1 Using the social stress model, I developed two hypotheses which I test in this study. First, I test the first part of the second pathway, which examines whether or not being a racial minority leads to greater stress. My hypothesis is that racial minorities will be more likely to experience both emotional and physical stress symptoms from differential treatment on the basis of race as compared to whites. Next, I test the second part of the second pathway of the model, which examines whether or not these stressors lead to higher rates of mental and physical health problems. My hypothesis is that having experienced stress from perceived racism will be a predictor for overall poorer mental and physical health. The analysis of these items is meant to gain an understanding of the significance of race in the experience of emotional and physical stress symptoms, and whether or not experiencing this stress is a substantial indicator of generally poor mental and physical health. Data and Methods To examine the effect of symptoms from racism on health, I used the 2004 Behavioral Risk Factor Surveillance System (BRFSS) which is from the National Center for Chronic Disease Prevention and Health Promotion (Centers for Disease Control and Prevention 2004). Each year the BRFSS includes optional modules which are only conducted in select states. I used the ‘‘Reactions to Race’’ module of the 2004 version which was conducted in seven states (Arkansas, Colorado, Delaware, Mississippi, Rhode Island, South Carolina, and Wisconsin) and the District of Columbia. Although a more recent version of the data set exists, I chose to the use the 2004 version as it includes more states across various regions. One could argue that these eight areas are diverse enough to be representative of the United States, but the module only includes these eight locations and therefore any findings from this study can only be generalized to these areas.2 I chose two items from the Reactions to Race module as the dependent variables in the first set of statistical models which address the emotional and physical stress symptoms produced by racism which could impact health.3 It is important to note here that I only use two items to represent stress from perceived racism. As the issue of perceived racism is complex and 6 KATHRYN FREEMAN ANDERSON multi-faceted, previous research indicates that multi-item measures are more reliable for understanding experiences with racism (Krieger et al. 2005). However, a series of questions of this sort in a large health data set is rare. Therefore, although the two items are limited in this manner, they are useful given that they are present in such a large and comprehensive data set with a variety of other health measures. The first item reads: ‘‘During the past 30 days, have you felt emotionally upset, for example angry, sad, or frustrated, as a result of how you were treated based on your race?’’ This item deals with the mental or emotional stress of racist experiences. On the basis of the previous literature, which is more focused on mental health, I expect a greater effect from this item. The second item reads: ‘‘Within the past 30 days, have you experienced any physical symptoms, for example headache, upset stomach, tensing of your muscles, or a pounding heart, as a result of how you were treated based on your race?’’ This item addresses the physical stress that one may experience as a result of racism. The responses for these two items (yes and no) were recoded into dummy variables (1 = yes, 0 = no). The response options of ‘‘don’t know ⁄ not sure’’ and ‘‘refused’’ were included in the original questionnaire, but these cases were dropped for this study. They only accounted for .55 percent of the cases for physical symptoms and .69 percent of the cases for emotional symptoms, and therefore their exclusion does not meaningfully change the model. I subsequently included these two items as the main independent variables for analysis in the second set of models. The second set of statistical models uses two count variables as the dependent variables. These items ask the respondent about the number of poor mental health days and poor physical health days they experienced within the past 30 days.4 These two items are included to examine the association between the experience of emotional or physical symptoms from racism and one’s overall health. The response options for these two items range from zero to thirty. Two additional response categories of ‘‘don’t know ⁄ not sure’’ and ‘‘refused’’ were included in the questionnaire. These response options constituted 1.89 percent of the cases for physical health and 1.6 percent of the cases for mental health, and these cases were dropped from the models as they are essentially missing values. The substantive independent variable I examine for the first two models is self-reported race. The questions about race in the BRFSS are based on the United States Census categories, and a separate question is included for Hispanic ethnic identity. I used a calculated variable from these items, which combines the two race and ethnicity questions, and provides a six category item for race ⁄ ethnicity with the options: non-Hispanic white, non-Hispanic black, Hispanic, multiracial and other. A sixth category of ‘‘don’t know ⁄ refused’’ was included in the original survey and accounted for 1.04 percent of respondents, but was dropped from this study. I created four dummy variables from these STRESS FROM RACISM AND THE HEALTH EFFECTS 7 categories which include: White, black, Hispanic, and other. The ‘‘other race’’ category includes Asians, Native Americans or Alaskan Natives, Pacific Islanders, multiracial respondents, and those who responded as ‘‘other.’’ As such, this category will not be useful for analysis as it does not capture the important differences between these groups. These groups each made up too small of a percentage of the total to provide sufficient analysis individually. White was used as the reference category in the four statistical models. I also control for other social and demographic factors. While the BRFSS contains a variety of health indicators, it only includes a limited number of social and demographic variables. I included most that are available in the data set. The control variables used in all four models include age, sex, education, income, marital status, employment status, and healthcare coverage. Age (in years) and education (in six categories) are treated as continuous variables. Sex (1 = female, 0 = male), marital status (1 = married, 0 = else), employment status (1 = employed, 0 = else) and healthcare coverage (1 = insured, 0 = else) were recoded into dummy variables. Income was made into a group of six dummy variables. I coded income as such to include a dummy variable for the ‘‘don’t know ⁄ refused’’ category as such a high number of respondents (12%) had a missing value for this variable. The ‘‘<$15,000 a year’’ category was used as the reference group. In the first set of statistical models, general health status and a variable for how often one thinks about race were included. Health status was included as a control as people of already reduced health status may be more likely to report physical or emotional symptoms from a negative experience. How often one thinks about race was included in the model to control for the potential effect of the respondent being ‘‘overly sensitive’’ to race-related issues, which has been a criticism of prior work (Sue et al. 2007; Okazaki 2009). General health status, ranging from excellent to poor, was made into five dummy variables, with the ‘‘excellent’’ category as the reference group. This variable for how often one thinks about race provides eight response categories: never, once a year, once a month, once a week, once a day, once an hour, constantly, and don’t know ⁄ not sure. I created seven dummy variables from those categories including one for ‘‘don’t know ⁄ not sure,’’ to keep as many respondents as possible in the sample. The categories for ‘‘once an hour’’ and ‘‘constantly’’ were combined into one category because of the extremely small number of cases in the ‘‘once an hour’’ category, and ‘‘once an hour’’ indicates a frequent consideration of race as does ‘‘constantly.’’ The dummy variable for ‘‘never’’ was used as the reference category. Results The descriptive statistics for all variables used in all four models can be found in Table 1. I also included a second table, Table 2, with a breakdown 8 KATHRYN FREEMAN ANDERSON Table 1 Descriptive Statistics for Variables Used in Statistical Models Variable name Mean SD Range Dependent variables Emotional stress from perceived racism .06 .24 0–1 .03 .18 0–1 Poor mental health 3.56 7.73 0–30 Poor physical health 3.91 8.36 0–30 Physical stress from perceived racism Independent variables Race White (reference) Black Hispanic Other race Age Gender Education Marital status Employment status Healthcare coverage Income <$15,000 (reference) .77 .15 .04 .04 49.20 .62 4.83 .42 0–1 .35 0–1 .21 0–1 .19 0–1 16.71 18–99 .49 0–1 1.08 1–6 Description 1 = Experienced emotional symptoms, 0 = Did not experience emotional symptoms 1 = Experienced physical symptoms, 0 = Did not experience physical symptoms Number of poor mental health days in the past 30 days Number of poor physical health days in the past 30 days .53 .61 .88 .50 .49 .33 0–1 0–1 0–1 1 = White, 0 = else 1 = Black, 0 = else 1 = Hispanic, 0 = else 1 = other race, 0 = else Respondent age in years 1 = female, 0 = male 1 = no school, 2 = elementary, 3 = some high school, 4 = high school, 5 = some college, 6 = college graduate 1 = married, 0 = else 1 = employed, 0 = else 1 = insured, 0 = else .10 .31 0–1 1 = <$15,000, 0 = else STRESS FROM RACISM AND THE HEALTH EFFECTS 9 Table 1 (Continued) Variable name Mean SD Range $15,000 to $25,000 .15 .35 0–1 $25,000 to $35,000 .12 .33 0–1 $35,000 to $50,000 .16 .36 0–1 $50,000 or more .35 .48 0–1 Don’t know ⁄ refused .12 .33 0–1 .41 .47 .45 .32 .22 0–1 0–1 0–1 0–1 0–1 1 1 1 1 1 .50 .33 .30 .25 .22 .23 0–1 0–1 0–1 0–1 0–1 0–1 1 1 1 1 1 1 .18 0–1 General health status Excellent (reference) .21 Very good .33 Good .29 Fair .11 Poor .05 How often think about race Never (reference) .56 Once a year .13 Once a month .10 Once a week .07 Once a day .05 Hourly ⁄ constantly .05 Don’t know ⁄ not sure .03 Description 1 = $15,000 to $25,000, 0 = else 1 = $25,000 to $35,000, 0 = else 1 = $35,000 to $50,000, 0 = else 1 = $50,000 or more, 0 = else 1 = don’t know ⁄ refused, 0 = else = = = = = excellent, 0 = else very good, 0 = else good, 0 = else fair, 0 = else poor, 0 = else = never, 0 = else = once a year, 0 = else = once a month, 0 = else = once a week, 0 = else = once a day, 0 = else = once an hour ⁄ constantly, 0 = else 1 = don’t know ⁄ not sure, 0 = else Note: N = 32,585. Data come from the 2004 Behavioral Risk Factor Surveillance System. of the means for each dependent variable by race. Before examining the regression results, some of the means by race provide some important comparisons. Compared to whites, all racial and ethnic minorities experience greater incidence of both emotional and physical stress from perceived racism. Blacks have the highest rates, with 18.2% experiencing emotional stress symptoms 10 KATHRYN FREEMAN ANDERSON Table 2 Means for Dependent Variables by Race Variable name White Black Hispanic Other race Dependent variables Emotional stress Physical stress Poor mental health Poor physical health .035 .016 3.375 3.798 .182* .098* 4.079* 4.296* .135* .083* 3.992 3.931* .124* .070* 4.760* 4.690* Note: N = 32,585. Data come from the 2004 Behavioral Risk Factor Surveillance System. *Indicates that the mean is significantly greater than the mean for white respondents. and 9.8% experiencing physical stress symptoms (compared to 3.5% and 1.6% respectively for whites). Also, racial and ethnic minorities experience significantly more days of poor mental and physical health (except Hispanics for physical health). Blacks and those in the ‘‘other race’’ category have a notably high number of poor health days compared to whites. To examine the relationship between stress from racism and its impacts on health, I estimated four models using these variables. For the first two models using the items on emotional or physical stress symptoms from treatment on the basis of race, I estimated two binary logit models. Those results, including the coefficients and odds ratios, can be found in Table 3. The discrete change coefficients for those two models can be found in Table 4. For the second two models, using the variables for number of days of poor physical and poor mental health, I estimated two negative binomial regression models. Those results, including the regression coefficients and factor change coefficients, for both the number of poor mental health days and poor physical health days can be found in Table 5. The discrete change coefficients of the expected counts for those two models can be found in Table 6. For interpretation of the results, I focus on the discrete change coefficients found in Tables 4 and 6. I focus on these results as discrete change coefficients, compared to other methods, provide a better indication of the relative impact of the variables as the effects of the variables are all in the same metric. Also, with such a large sample size (N = 32,585), the substantive impact of each variable should be emphasized over significance. STRESS FROM RACISM AND THE HEALTH EFFECTS 11 Table 3 Coefficients (Standard Errors) and Odds Ratios from Binary Logit Models of Emotional and Physical Stress Symptoms from Perceived Racism Variable Name Model 1 Model 2 Emotional stress from racism Physical stress from racism b Race White (reference) Black 1.144*** Hispanic .579*** Other race .715*** Age ).024*** Gender .091 Education .045 Marital status ).057 Employment status .029 Healthcare coverage ).169** Income <$15,000 (reference) $15,000 to $25,000 ).165* $25,000 to $35,000 ).286** $35,000 to $50,000 ).260** $50,000 or more ).337*** Don’t know ⁄ refused ).405*** General health status Excellent (reference) Very good .149* Good .397*** Fair .771*** Poor 1.333*** How often think about race Never (reference) Once a year .237* SE (.059) (.095) (.101) (.002) (.051) (.026) (.053) (.058) (.065) OR b SE OR 3.140 1.142*** (.080) 3.134 1.785 .757*** (.122) 2.131 2.044 .877*** (.131) 2.403 .668a ).019*** (.002) .729a 1.096 .199** (.070) 1.219 1.050a .020 (.034) 1.022a .945 ).052 (.072) .949 1.029 .091 (.078) 1.095 .855 ).205* (.083) .815 (.083) (.096) (.097) (.096) (.101) .848 .751 .771 .714 .667 ).322** ).389** ).539*** ).613*** ).562*** (.100) (.121) (.128) (.126) (.127) .725 .678 .583 .542 .570 (.075) (.075) (.091) (.114) 1.160 1.488 2.162 3.793 .241* .556*** 1.175*** 1.876*** (.114) (.112) (.124) (.144) 1.273 1.744 3.237 6.525 (.096) 1.268 .245 (.129) 1.277 12 KATHRYN FREEMAN ANDERSON Table 3 (Continued) Variable Name b Model 1 Model 2 Emotional stress from racism Physical stress from racism SE Once a month .898*** (.083) Once a Week 1.449*** (.081) Once a Day 1.835*** (.078) Once an hour ⁄ 1.649*** (.078) constantly Don’t know ⁄ .467** (.150) not sure Constant )2.867*** (.176) Pseudo R2b .174 Deviance ()2LL) 12818.230 OR 2.455 4.259 6.267 5.203 1.595 b .675*** 1.185*** 1.542*** 1.535*** .284 SE OR (.119) (.114) (.106) (.099) 1.965 3.269 4.674 4.643 (.208) 1.328 )3.748*** (.237) .168 7903.051 Notes: N = 32,585. Data come from the 2004 Behavioral Risk Factor Surveillance System. b = Logit coefficient. SE = Standard error. OR = Odds ratio (factor change). a The odds ratios for these continuous variables reflect an x-standardized factor change. b The pseudo R2 represents the calculation for McFadden’s R2. *p < .05, ** p < .01, *** p < .001 (two-tailed). Examining the results from the first two binary logit models, we can see that race is related to experiencing emotional and physical stress from racist encounters. First, looking at emotional stress from racism, on which the current literature places more focus, all three race categories when compared to whites have substantial results even when controlling for socioeconomic status, general health status, and mental preoccupation with race. Furthermore, of these three groups, blacks were most likely to experience mental or emotional symptoms from experiences of perceived racism when compared to whites. The predicted probability of experiencing emotional symptoms from racist STRESS FROM RACISM AND THE HEALTH EFFECTS 13 Table 4 Discrete Change Coefficients from Binary Logit Models of Emotional and Physical Stress Symptoms from Perceived Racism Variable name Race White (reference) Black Hispanic Other race Age Gender Education Marital status Employment status Healthcare coverage Income <$15,000 (reference) $15,000 to $25,000 $25,000 to $35,000 $35,000 to $50,000 $50,000 or More Don’t know ⁄ refused General health status Excellent (reference) Very good Good Fair Poor How often think about race Never (reference) Once a year Once a month Once a week Once a day Emotional stress Physical stress .060 .023 .030 ).015 .003 .002 ).002 .001 ).006 .029 .016 .019 ).006 .003 ).000 ).001 .002 ).004 ).007 ).012 ).011 ).014 ).016 ).008 ).009 ).011 ).013 ).012 .004 .013 .030 .070 .003 .008 .024 .058 .007 .035 .074 .114 .003 .012 .027 .044 14 KATHRYN FREEMAN ANDERSON Table 4 (Continued) Variable name Once an hour ⁄ constantly Don’t know ⁄ not sure Emotional stress .093 .014 Physical stress .043 .004 Note: N = 32,585. Data come from the 2004 Behavioral Risk Factor Surveillance System. For the dummy variables (race, gender, marital status, employment status, healthcare coverage, income, general health status, and how often think about race), the discrete change coefficients reflect the change in the predicted probability associated with a change from 0 to 1 in the variable. For the continuous variables (age and education), the discrete change coefficients reflect a change in the predicted probability associated with a standard deviation increase, centered around its mean, in the variable. For each discrete change coefficient, the remaining variables are held at their means. treatment for blacks is .06 greater than the probability for whites.5 This figure is .023 for Hispanics and .03 for the ‘‘other race’’ category, which are still substantively important results, but are not quite as high as the coefficient for blacks. The predicted probability for the ‘‘other race’’ category was greater than the figure for Hispanics, but unfortunately, as previously mentioned, these results are difficult to interpret as the category is made up of such a mixture of groups. Additionally, one’s physical health status was also associated with experiencing emotional stress symptoms because of racist experiences for all racial categories. Those respondents with poorer health, compared to those with excellent health, are more often estimated to experience emotional stress from racism. The odds of experiencing emotional stress from racism increases as the dummy categories for health status move from ‘‘very good’’ to ‘‘poor.’’ Being of poor health, compared to of excellent health, increases the predicted probability of experiencing emotional stress as a result of racist treatment by .07. This figure is even greater than the discrete change coefficient for blacks (.06), showing that being of poor health is associated with having an emotional reaction from racist experiences. The largest coefficients in the model were for the set of variables for how often one thinks about race. All six categories when compared to those who Emotional stress Physical stress Race White (reference) Black Hispanic Other race Age Gender Education Marital status Employment status Healthcare coverage Variable name (.073) (.098) (.045) (.074) (.081) (.001) (.030) (.016) (.032) (.037) (.048) ).271*** ).264*** .036 ).018*** .370*** ).116*** ).272*** .278*** ).142** SE .763 .768 1.037 .738a 1.449 .883a .762 .757 .868 1.544 1.722 FC ).193*** ).123 .101 .010*** .133*** ).149*** ).066* ).648*** ).016 .264*** .435*** b (.044) (.072) (.078) (.001) (.030) (.015) (.032) (.035) (.046) (.071) (.096) SE Physical health days Mental health days .434*** .543*** b Model 2 Model 1 FC .825 .885 1.107 1.179a 1.143 .851a .936 .523 .985 1.303 1.545 Table 5 Coefficients (Standard Errors) and Factor Change Coefficients from Negative Binomial Regression Models of Number of Poor Mental and Physical Health Days STRESS FROM RACISM AND THE HEALTH EFFECTS 15 ).244*** ).429*** ).522*** ).655*** ).593*** 3.251*** b (.061) (.066) (.065) (.063) (.065) (.108) 6.912*** .011 11536.750 SE FC b .784 .651 .593 .519 .552 ).240*** ).480*** ).530*** ).742*** ).536*** 2.244*** (.054) (.063) (.063) (.061) (.063) (.107) 6.516*** .016 118656.648 SE Physical health days Mental health days Note: N = 32,585. Data come from the 2004 Behavioral Risk Factor Surveillance System. b = Negative binomial regression coefficient. SE = Standard error. FC = Factor change coefficient. a The factor change coefficients for these continuous variables reflect an x-standardized factor change. b The pseudo R2 represents the calculation for McFadden’s R2. *p < .05, **p < .01, ***p < .001 (two-tailed). Income <$15,000 (reference) $15,000 to $25,000 $25,000 to $35,000 $35,000 to $50,000 $50,000 or more Don’t know ⁄ refused Constant Alpha Pseudo R2b Deviance ()2LL) Variable name Model 2 Model 1 Table 5 (Continued) .786 .619 .588 .476 .585 FC 16 KATHRYN FREEMAN ANDERSON STRESS FROM RACISM AND THE HEALTH EFFECTS 17 Table 6 Discrete Change Coefficients for the Expected Count from Negative Binomial Regression Models of Number of Poor Mental and Physical Health Days Variable name Emotional stress Physical stress Race White (reference) Black Hispanic Other race Age Gender Education Marital status Employment status Healthcare coverage Income <$15,000 (reference) $15,000 to $25,000 $25,000 to $35,000 $35,000 to $50,000 $50,000 or more Don’t know ⁄ refused Mental health days Physical health days 1.614 2.163 .938 1.693 ).761 ).746 ).119 )1.931 1.090 ).380 ).839 ).877 ).457 ).570 ).375 ).346 .519 .414 ).508 ).209 )2.226 ).049 )1.056 )1.703 )1.985 )2.346 )2.185 )1.111 )1.982 )2.141 )2.725 )2.159 Note: N = 32,585. Data come from the 2004 Behavioral Risk Factor Surveillance System. For the dummy variables (race, gender, marital status, employment status, healthcare coverage, income, and general health status), the discrete change coefficients reflect the change in the expected count associated with a change from 0 to 1 in the variable. For the continuous variables (age and education), the discrete change coefficients reflect a change in the expected count associated with a standard deviation increase, centered around its mean, in the variable. For each discrete change coefficient, the remaining variables are held at their means. 18 KATHRYN FREEMAN ANDERSON never think about race had highly significant results. The most notable of these results was the variables for ‘‘once a day’’ and ‘‘once an hour ⁄ constantly,’’ which all indicate extremely frequent consideration of race. These two variables had the strongest discrete change coefficients out of all of the variables in the model, even when accounting for race and socioeconomic status. These show that thinking about race is highly associated with experiencing an emotional reaction to racism, regardless of the race of the respondent. Although this group of variables produced a large effect in the model, the effects of race are still substantial, indicating that the effect of race is not explained away by racial consciousness, which is a critique of previous work (Sue et al. 2007). When considering physical stress symptoms because of perceived racism, the results are quite similar with a few notable exceptions. When examining the discrete change coefficients, most of the values are slightly lower than they were for the first model of emotional stress. This is possibly an indication that in general, people are more likely to experience an emotional reaction to racism than a physical one, but these different results may just indicate that using this set of variables, we are less able to predict the outcome for physical stress. This result is expected from the previous literature, which places a much stronger emphasis on emotional and mental effects than on physical ones, or if it deals with physical symptoms, does so through the pathway of mental health. Notably, all three variables for race, when compared to whites, are significant predictors for experiencing physical stress symptoms from a racist experience, with blacks being more likely than the other racial groups to experience physical symptoms. These two variables for emotional and physical stress were then included in the two negative binomial regression models as the main substantive independent variables for analysis to examine whether experiencing these stress symptoms is related to overall poorer health. The two negative binomial regression models use variables for the number of poor physical and poor mental health days as the dependent variables. While I reported the coefficients and factor change coefficients from both models in Table 5, I will focus on the discrete change coefficients from Table 6 for interpretation. For interpretation purposes, the discrete change coefficients in these two models reflect a change in the expected count of poor mental and physical health days. Before analyzing the two substantive independent variables in the model, a few of the control variables were notable. First, in both the model of number of poor physical health days and the model of poor mental health days, the variables for race alone did not produce substantial results. When controlling for all the other factors in the model, the race dummy variables for blacks and Hispanics were actually negatively related to having a higher number of poor mental and poor physical health days compared to whites, with blacks being STRESS FROM RACISM AND THE HEALTH EFFECTS 19 the least likely of the three groups to have a higher count. I also ran a set of models (not shown here) using these outcomes with only the dummy variables for race included to examine the gross effects of race on the outcome. All of the race dummy variables (except for Hispanics for poor physical health days), as compared to whites, were all significant and positively associated with a higher count of both poor mental and physical health days. The gross effects of race demonstrate racial health disparities, but this effect is removed when controlling for all of these factors, including the stress symptom variables. The stress symptom variables are highly associated with being a racial minority, as compared to whites (as shown in the first set of models). Thus, when these variables are included in a model with the race variables, the effect of being a racial minority is removed and whites actually have a higher predicted count of poor mental and physical health days. Even with all of the variables in the model, although they are significant because of the large N, they are not substantively strong effects.6 When examining the main substantive variables for emotional and physical stress from the experience of perceived racism on overall mental health, it is evident from the discrete change coefficients that they are associated. First of all, experiencing both emotional and physical stress from the experience of racism is significant and positively related to having more days of poor mental health. For those who experienced emotional stress from perceived racism, the expected number of poor mental health days is predicted to increase by 1.614, or over 1 day and a half. For those who experienced physical symptoms from perceived racism, the expected number of poor mental health days is predicted to increase by 2.163, or a little over 2 days. While these numbers may appear insignificant in the scope of thirty possible days of poor mental health, they are among the highest positive values in the overall model. The only other more substantially strong effects are for the set of dummy variables for income. The effects of gender, education, marital status, employment status, and even healthcare coverage are all substantively much weaker predictors than the two stress variables. The model for the number of days of poor physical health also produced noteworthy results. The results for the two variables for physical and emotional reactions to racism are both significant and positively associated with having a higher number of poor physical health days. For those who experienced emotional stress symptoms from perceived racism, the expected number of days of poor physical health is predicted to increase by .938, or almost one full day. For those who experienced physical stress from perceived racism, the expected number of days of poor physical health is predicted to increase by 1.693, or a little more than one day and a half. Substantively, these effects were not quite as strong as in the mental health model, as were all of the 20 KATHRYN FREEMAN ANDERSON EmoƟonal Stress No EmoƟonal Stress Number of Days of Poor Health 6 5 4 3 2 1 0 White Black Hispanic Mental Health Other Race White Black Hispanic Physical Health Other Race Race Physical Stress No Physical Stress Number mber of Days of Poor Health 6 5 4 3 2 1 0 White Black Hispanic Mental Health Other Race White Black Hispanic Physical Health Other Race Race Figure 1 Expected Count of Number of Poor Physical and Poor Mental Health Days by Race and the Experience of Emotional and Physical Stress from Perceived Racism. Note: N = 32,585. Data come from the 2004 Behavioral Risk Factor Surveillance System. For each expected count, all of the remaining variables are held at their means. remaining variables (except the set of variables for income and employment status). However, they were among the largest coefficients in the model. To further develop this relationship, I calculated the expected count for the number of poor physical and mental health days by race and the experience of emotional and physical stress from racist treatment. These results are in Figure 1. The bars in Figure 1 demonstrate the difference in the expected count between those who had and had not experienced stress symptoms from perceived racist treatment. For all racial groups, I found a statistically significant difference in the number of poor physical and poor mental health STRESS FROM RACISM AND THE HEALTH EFFECTS 21 days between those who had and had not experienced stress from racism. For those who experienced emotional stress from racism, the expected count of poor mental health days increases by over a day for all racial groups, and increases by over a day and a half for whites (1.697) and the ‘‘other race’’ category (1.76). For those who experienced physical stress from racism, this count increases by over 1 day and a half for blacks (1.735), Hispanics (1.745), and by over 2 days for whites (2.274) and for the ‘‘other race’’ category (2.358). For those who experienced emotional stress from racist treatment, the expected count of poor physical health days is predicted to increase by almost 1 day for blacks (.797), Hispanics (.856), and whites (.966), and by over 1 day for the ‘‘other race’’ category (1.07). For those who experienced physical stress from racism, this count increases by over a day and a half for all racial groups, with the ‘‘other race’’ category having a count close to two full days (1.93). Whites who experienced stress symptoms have some of the highest expected counts of both poor mental and physical health days, next to those in the ‘‘other race’’ category. This seemingly odd result merely stems from the fact that the effects of race and stress are additive, and the dummy variables for blacks and Hispanics were significant and negative compared to whites when including the symptom variables in the model (as discussed above).7 As an additive effect, the effects of the stress symptom variables are uniform across all racial groups, including whites. Furthermore, whites who reported such symptoms make up such a small portion of the white sample (3.5% for emotional stress and 1.6% for physical stress). These figures are much higher for all other racial and ethnic categories. Therefore, the expected counts for white respondents only reflect an extremely small portion of the sample, and their expected counts also may not be particularly meaningful for that reason. Overall, the results in Figure 1 represent that having experienced such stress leads to an increase in poor physical and mental health days for all racial groups. This association is greater for mental health than for physical health, especially for those who experienced physical stress from perceived racism. The expected count for physical health was still substantial, with an expected count of about 1 day greater for all cases for those who experienced both physical and emotional stress from racist treatment. The results reveal a statistically significant difference between those who had and had not experienced symptoms for all racial groups, for both emotional and physical stress from racism and for both physical and mental health outcomes. Therefore, having experienced symptoms from perceived racist treatment is related to overall poorer mental and physical health. 22 KATHRYN FREEMAN ANDERSON Discussion Limitations of the Data An obvious limitation of the study is that it is based on self-report of both the experience of emotional and physical stress symptoms from racist treatment and the number of poor mental and physical health days. The reports are based on the perceptions of the respondent and may therefore be subject to under or over-reporting of the incidence of these factors. Furthermore, selfreport makes it more difficult to conduct between-group analysis, as there may be racial and ethnic differences in the way stress symptoms and health are reported (Layes, Asada, and Kephart 2012). Several previous studies on the health effects of racism use some measure of self-report or perceived experience of racism (Paradies 2006; Vines et al. 2007; Brondolo et al. 2009; Fujishiro 2009; Gee and Walsemann 2009). However, some studies have used more concrete measures of its effect on health outcomes (Kwate et al. 2003; Peters 2006; Vines et al. 2007). Krieger et al. (2005) found no problem with the use of self-report in their work on the ‘‘Experiences of Discrimination’’ scale, but did recommend that a multi-item measure would be more reliable. Selfreported health is also common in the work on racism and its health impacts (Paradies 2006; Williams and Mohammed 2009). Using a secondary data source makes it difficult to address these limitations. For example, it was not possible using this data to use a multi-item scale for a measure of the stress resulting from racism. Also, there are no general health questions in the BRFSS data set which are not based on self-report. Whether or not the experience of symptoms or negative health effects is based on an absolute, concrete measure, I argue, may be irrelevant, as the effects produced depend on the individual’s experience. If the individual subjectively feels as though they have experienced these outcomes, then that is where the effect is produced. The other main limitation of the study is that the survey items only refer to stress symptoms from racism experienced within the past 30 days, and the number of poor mental and physical health days within the past 30 days. Other studies indicate that time is an important component in the health effects of racism and stress (Gee and Walsemann 2009; Geronimus et al. 2006; Kwate et al. 2003). They suggest a time lag in the effects of racism, which may be compounded and become worse over time (Gee and Walsemann 2009). They also suggest that the effects of racist experiences over a lifetime can lead to poor health outcomes (Kwate et al. 2003). Geronimus’ weathering hypothesis, for example, emphasizes the compounding of multiple social factors and adverse circumstances for racial minorities in the United States which may lead to substantial differences in health, particularly as it STRESS FROM RACISM AND THE HEALTH EFFECTS 23 relates to aging (Geronimus et al. 2006). Findings from this study only address experiences with racist treatment within the last thirty days using only a crosssectional study, which captures the respondent’s experience in a snapshot in time. These results provide no indication of the frequency of stressful racist events in the respondent’s life, how often they experience physical or emotional symptoms from the racist experience, for example, if this is a regular occurrence or an isolated event, or if these experiences indicate some longterm impact on health. The results from the second two models indicate that experiencing stress leads to having more days of poor mental and poor physical health within the parameter of the last thirty days, but does not indicate whether frequent emotional or physical stress with these indicated symptoms may lead to poor future health consequences. All of these considerations are important for future research. Conclusions From the results from the first two models, it is evident that the association of race with the experience of physical or emotional stress from racism is substantial. Additionally, African Americans are more likely than any other racial group to experience such symptoms. I contend that this is the case because the history of the racial discrimination of blacks in the United States has been severe, and whose effects are only slightly mitigated in the postCivil Rights era (Byrd and Clayton 2001). Also, given the use of survey data, it is difficult to tell whether or not blacks are more likely to experience such stress because they are more likely to have racist experiences or because they are more likely to be responsive to such experiences. But, it is clear, examining both Table 2 and the regression results, that blacks are more likely to experience this effect. These results were still substantial even after controlling for socioeconomic status, health status, and how often one thinks about race. Socioeconomic status is still often suggested as a reason for the continued racial differences in the United States, and in particular, health differences (Dressler, Oths, and Gravlee 2005; Hummer 1996; Williams 1999). From the results, education and employment status were not even significant factors in experiencing symptoms. Income was a factor, with higher income leading to a decreased probability of experiencing emotional or physical symptoms from racism, but these effects were not as substantial as those from race, health status, or how often one thinks about race. Studies also suggest that strong reactions to racism are merely because of the individual’s sensitivity to racial issues, rather than the actual experience of racism or its harmful effects (Sue et al. 2007). The variable for how often one thinks about race was included to capture the potential sensitivity on the part of the respondent that if one is 24 KATHRYN FREEMAN ANDERSON mentally preoccupied with race, they are more likely to experience or even notice any effect of a racist experience. These results were substantial in the model, but if the effect was only produced by sensitivity, the other factors in the model would be inconclusive. As such, the effects of race were still strong for all racial categories in both models when compared to whites, and especially for blacks. Additionally, when the two stress variables were used in models on overall mental and physical health, the results were noteworthy. For both models, having experienced physical or emotional stress were both substantial predictors for an increase in the number of poor mental health days and the number of poor physical health days. This effect was somewhat stronger in the model of number of poor mental health days. The expected count by racial group also revealed that for all racial groups having experienced physical and emotional stress from racism leads to an increase in the count of both poor physical and poor mental health days. Therefore, having experienced emotional or physical symptoms from a perceived racist experiences is related to an increased number of poor mental or physical health days. As an empirical test of social stress theory, these results affirm both of the pathways outlined in the conceptual model discussed earlier, which has been a point of criticism of previous studies on the subject (Schwartz and Meyer 2010). The results from the first two models demonstrate that being a racial minority is a substantial predictor for experiencing both emotional and physical stress symptoms from discriminatory experiences. Additionally, from the second set of models, the results demonstrate that having experienced stress symptoms was a substantial predictor for all racial groups for having more days of poor mental and physical health. These results provide empirical evidence for the second pathway that social stress is related to health problems. Overall, from these results, I conclude that there is a relationship between racism and poorer health, both mental and physical. These findings demonstrate that experiencing both emotional and physical stress symptoms from perceived racist treatment are related to overall poorer mental and physical health. ENDNOTES *The author would like to thank Andrew Fullerton for helpful comments on earlier drafts of this paper. Please direct all correspondence to Kathryn Freeman Anderson, Department of Sociology, University of Arizona, Department of Sociology, P. O. Box 210027, Tucson, AZ 85721 (email: [email protected]). 1 The results section of this article does not develop first pathway using a between-group analysis to demonstrate that racial minorities have a higher incidence of health disorders. The literature on the subject is highly developed; therefore, I felt it unnecessary to devote much of this STRESS FROM RACISM AND THE HEALTH EFFECTS 25 article to this relationship. However, Schwartz and Meyer in the article question whether or not such a pathway exists (2010). Although the full results are not provided here, I ran regression analyses using the race variables and a variety of both mental and physical health outcomes. Those results indicate that racial minorities when compared to whites (except for Hispanics for physical health) are substantially more likely to experience both poorer mental and physical health outcomes. 2 Each of the states in the BRFSS sample is distinct. They each have their own unique history of race relations, government and structural arrangements. Each of these features could affect experiences of racism and any resulting symptoms. However, the focus of the study is on individual-level experiences and risk factors. The data cannot account for state-level or institutional forces which may influence these outcomes. 3 The experience of stress may entail a variety of factors, including both life event and chronic stressors. Although the data set includes a variety of demographic and health indicators, it was not possible to control for all possible sources of stress. I included as many as possible that were available in the data, such as employment status, income, health status, mental preoccupation with race, etc. To examine the effect of stress from racism, I focus on the two items in the Reactions to Race module. 4 These two items are specifically worded as: ‘‘Now thinking about your mental health, which includes stress, depression, and problems with emotions, for how many days during the past 30 days was your mental health not good?’’ for mental health, and ‘‘Now thinking about your physical health, which includes physical illness and injury, for how many days during the past 30 days was your physical health not good?’’ for physical health. 5 For all interpretations of discrete change coefficients, the remaining variables are held at their means. 6 I also ran the negative binomial regression models for poor mental and physical health days with the race dummy variables and with and without the stress symptoms variables to demonstrate that stress from perceived racism is an explanatory factor for racial health disparities. Because of space constraints, I do not include the full results for these models. When only the group of race dummy variables is included in the models, the results show that being a racial and ethnic minority, as compared to white, is associated with a higher count of poor mental and physical health days (except Hispanics for poor physical health days). For all racial and ethnic groups, compared to whites, the inclusion of the emotional and physical stress variables substantially reduced the size of the race coefficients for the number of days of poor mental and physical health. With the exception of the other race category for mental health days, the race dummy variables were no longer significant with the inclusion of the stress variables. Thus, the inclusion of the stress symptom variables explains away the gross effects of being a racial minority on poor health days. Furthermore, when the other social and demographic variables are included in the full model, the coefficients for black and Hispanic actually become significant and negative compared to the white reference group. 7 Stress because of racism increases the expected number of days of poor physical ⁄ mental health for every racial and ethnic group (including whites) because there are no interaction terms in the model. Without interaction terms, the effects of race and stress are additive. In other words, the effect of stress will be the same for every racial group, and racial differences will be the same for respondents with and without stress. To allow for different effects of stress by racial or ethnic group, I would need to include interaction terms in the model between the race variables and the stress variables. I estimated these models and found that none of the interaction terms were significant. Therefore, I present models without interaction terms in the study. 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