The intersection of school racial composition and student race/ethnicity on adolescent depressive and somatic symptoms

http://dx.doi.org/10.1016/j.socscimed.2011.03.03

Effect of School Racial Composition on Trajectories of Depressive Symptoms from Adolescence Through Early Adulthood

We investigate the effect of high school racial composition, measured as percent of non-Hispanic white students, on trajectories of depressive symptoms from adolescence to early adulthood. We also explore whether the effect of school racial composition varies by respondent race/ethnicity and whether adult socioeconomic status mediates this relationship. We analyzed four waves of data from the National Longitudinal Study of Adolescent Health using 3-level linear growth models. We restricted our sample to respondents enrolled in grades 9-12 in 1994/5 who were interviewed at a minimum in Waves I and IV. This resulted in 10,350 respondents enrolled in 80 high schools in 1994/5 (5,561 whites, 2,030 blacks, 1,834 Hispanics, 738 Asians, and 187 of other race). As the percentage of white students increased at the high school respondents attended in 1994/5, blacks reported more depressive symptoms. This effect did not vary by age. In comparison, Asian and Hispanic respondents who attended predominantly white high schools had lower levels of depressive symptoms than their counterparts who attended predominantly minority schools, but they also experienced a slower decline in depressive symptoms through early adulthood. Adult SES mediated the relationship between high school racial composition and depressive symptoms for black, but not for Asian or Hispanic respondents. Our results suggest that high school racial composition is associated with trajectories of depressive symptoms through early adulthood, but the effect differs by respondents’ race/ethnicity. Racial/ethnic disparities in depressive symptoms during early adulthood may have their origins in adolescence

Effect of School Racial Composition on Trajectories of Depressive Symptoms from Adolescence through Early Adulthood

Introduction: We investigate the effect of high school racial composition, measured as percent of non-Hispanic White students, on trajectories of depressive symptoms from adolescence to early adulthood. We also explore whether the effect of school racial composition varies by respondent race/ethnicity and if adult socio-economic status mediates this relationship. Methods: We analyzed four waves of data from the National Longitudinal Study of Adolescent Health using 3-level linear growth models. We restricted our sample to respondents enrolled in grades 9-12 in 1994/5 who were interviewed at a minimum in Waves I and IV. This resulted in 10,350 respondents enrolled in 80 high schools in 1994/5 (5,561 Whites, 2,030 Blacks, 1,834 Hispanics, 738 Asians, and 187 of other race). Results: As the percentage of White students increased at the high school respondents attended in 1994/5, Blacks reported more depressive symptoms. This effect did not vary by age. In comparison, Asian and Hispanic respondents who attended predominantly-White high schools had lower levels of depressive symptoms than their counterparts who attended predominantly-minority schools, but they also experienced a slower decline in depressive symptoms through early adulthood. Adult SES mediated the relationship between high school racial composition and depressive symptoms for Black, but not for Asian or Hispanic respondents. Discussion: Our results suggest that high school racial composition is associated with trajectories of depressive symptoms through early adulthood, but the effect differs by respondents\u27 race/ethnicity. Racial/ethnic disparities in depressive symptoms during early adulthood may have their origins in adolescence

Effect of School Racial Composition on Trajectories of Depressive Symptoms from Adolescence Through Early Adulthood

We investigate the effect of high school racial composition, measured as percent of non-Hispanic white students, on trajectories of depressive symptoms from adolescence to early adulthood. We also explore whether the effect of school racial composition varies by respondent race/ethnicity and whether adult socioeconomic status mediates this relationship. We analyzed four waves of data from the National Longitudinal Study of Adolescent Health using 3-level linear growth models. We restricted our sample to respondents enrolled in grades 9-12 in 1994/5 who were interviewed at a minimum in Waves I and IV. This resulted in 10,350 respondents enrolled in 80 high schools in 1994/5 (5,561 whites, 2,030 blacks, 1,834 Hispanics, 738 Asians, and 187 of other race). As the percentage of white students increased at the high school respondents attended in 1994/5, blacks reported more depressive symptoms. This effect did not vary by age. In comparison, Asian and Hispanic respondents who attended predominantly white high schools had lower levels of depressive symptoms than their counterparts who attended predominantly minority schools, but they also experienced a slower decline in depressive symptoms through early adulthood. Adult SES mediated the relationship between high school racial composition and depressive symptoms for black, but not for Asian or Hispanic respondents. Our results suggest that high school racial composition is associated with trajectories of depressive symptoms through early adulthood, but the effect differs by respondents’ race/ethnicity. Racial/ethnic disparities in depressive symptoms during early adulthood may have their origins in adolescence

Caenorhabditis elegans as a model system to identify therapeutics for alcohol use disorders

Alcohol use disorders (AUDs) cause serious problems in society and few effective treatments are available. Caenorhabditis elegans (C. elegans) is an excellent invertebrate model to study the neurobiological basis of human behavior with a conserved, fully tractable genome, and a short generation time for fast generation of data at a fraction of the cost of other organisms. C. elegans demonstrate movement toward, and concentration-dependent self-exposure to various psychoactive drugs. The discovery of opioid receptors in C. elegans provided the impetus to test the hypothesis that C. elegans may be used as a medications screen to identify new AUD treatments. We tested the effects of naltrexone, an opioid antagonist and effective treatment for AUDs, on EtOH preference in C. elegans. Six-well agar test plates were prepared with EtOH placed in a target zone on one side and water in the opposite target zone of each well. Worms were treated with naltrexone before EtOH preference testing and then placed in the center of each well. Wild-type worms exhibited a concentration-dependent preference for 50, 70 and 95% EtOH. Naltrexone blocked acute EtOH preference, but had no effect on attraction to food or benzaldehyde in wild-type worms. Npr-17 opioid receptor knockout mutants did not display a preference for EtOH. In contrast, npr-17 opioid receptor rescue mutants exhibited significant EtOH preference behavior, which was attenuated by naltrexone. Chronic EtOH exposure induced treatment resistance and compulsive-like behavior. These data indicate that C. elegans can serve as a model system to identify compounds to treat AUDs

Model Deformation and Optical Angle of Attack Measurement System in the NASA Ames Unitary Plan Wind Tunnel

Both AoA and MDM measurements can be made using an optical system that relies on photogrammetry. Optical measurements are being requested by customers in wind tunnels with increasing frequency due to their non-intrusive nature and recent hardware and software advances that allow measurements to become near real time. The NASA Ames Research Center Unitary Plan Wind Tunnel is currently developing a system based on photogrammetry to measure model deformation and model angle of attack. This paper describes the new system, its development, its use on recent tests and plans to further develop the system

Body mass index trajectories from adolescence to midlife: Differential effects of parental and respondent education by race/ethnicity and gender

Objectives: Race/ethnicity and education are among the strongest social determinants of body mass index (BMI) throughout the life course, yet we know relatively little about how these social factors both independently and interactively contribute to the rate at which BMI changes from adolescence to midlife. The purpose of this study is to 1) examine variation in trajectories of BMI from adolescence to midlife by mothers\u27 and respondents\u27 education, and 2) determine if the effects of mothers\u27 and respondents\u27 education on BMI trajectories differ by race/ethnicity and gender. Design: We used nationally representative data from the National Longitudinal Survey of Youth (NLSY79). Our sample included White (n=4,433), Black (n=2,420) and Hispanic (n=1,501) respondents. Self-reported height and weight were collected on 16 occasions from 1981-2008. We employed two-level linear growth models to specify BMI trajectories. Results: Mothers\u27 education was inversely associated with BMI and BMI change among women. Among men, mothers\u27 education was inversely associated with BMI; these educational disparities persisted for Whites, diminished for Blacks, and widened for Hispanics. Respondents\u27 education was inversely associated with BMI among women, but was positively associated with the rate of BMI change among Black women. Respondents\u27 education was inversely associated with BMI among White and Hispanic men, and positively associated with BMI among Black men. These educational disparities widened for White and Black men, but narrowed for Hispanic men. Conclusions: Our results suggest that by simultaneously considering multiple sources of stratification, we can more fully understand how the unequal distribution of advantages or disadvantages across social groups affects BMI across the life course

The Photo Essay: A Visual Research Method for Educating Obstetricians and Other Health Care Professionals

When it comes to issues related to low-income women seeking early, adequate, or continuous prenatal ca re, the public health and medical communities continue to tell women to take responsibility for their actions. Rarely are messages aimed at providers. To help physicians see how factors in their offices and clinics can affect service utilization, the photo essay, a visual qualitative research strategy was developed using low- income minority and disenfranchised women who had recently given birth or were near to giving birth. Eight photo essays were completed. Together, the narratives, in collaboration with the photos, provided an opportunity for physicians to hear and observe women, as consumers, as they expanded their descriptions of their prenatal care experience

Spoken Word Learning in Children With Developmental Language Disorder or Dyslexia

Purpose Word learning difficulties have been documented in multiple studies involving children with dyslexia and developmental language disorder (DLD; see also specific language impairment). However, no previous studies have directly contrasted word learning in these two frequently co-occurring disorders. We examined word learning in second-grade students with DLD-only and dyslexia-only as compared to each other, peers with both disorders (DLD + dyslexia), and peers with typical development. We hypothesized that children with dyslexia-only and DLD-only would show differences in word learning due to differences in their core language strengths and weaknesses. Method Children ( = 244) were taught eight novel pseudowords paired with unfamiliar objects. The teaching script included multiple exposures to the phonological form, the pictured object, a verbal semantic description of the object, and spaced retrieval practice opportunities. Word learning was assessed immediately after instruction with tasks requiring recall or recognition of the phonological and semantic information. Results Children with dyslexia-only performed significantly better on existing vocabulary measures than their peers with DLD-only. On experimental word learning measures, children in the dyslexia-only and DLD + dyslexia groups showed significantly poorer performance than typically developing children on all word learning tasks. Children with DLD-only differed significantly from the TD group on a single word learning task assessing verbal semantic recall. Conclusions Overall, results indicated that children with dyslexia display broad word learning difficulties extending beyond the phonological domain; however, this contrasted with their relatively strong performance on measures of existing vocabulary knowledge. More research is needed to understand relations between word learning abilities and overall vocabulary knowledge and how to close vocabulary gaps for children with both disorders. Supplemental Material https://doi.org/10.23641/asha.14832717

Open AccessArticle Food Shopping and Acquisition Behaviors in Relation to BMI among Residents of Low-Income Communities in South Carolina

Low-income areas in which residents have poor access to healthy foods have been referred to as “food deserts.” It is thought that improving food access may help curb the obesity epidemic. Little is known about where residents of food deserts shop and if shopping habits are associated with body mass index (BMI). We evaluated the association of food shopping and acquisition (e.g., obtaining food from church, food pantries, etc.) with BMI among 459 residents of low-income communities from two South Carolina counties, 81% of whom lived in United States Department of Agriculture-designated food deserts. Participants were interviewed about food shopping and acquisition and perceptions of their food environment, and weight and height were measured. Distances to food retail outlets were determined. Multivariable linear regression analysis was employed. Our study sample comprising largely African-American women had an average BMI of 32.5 kg/m2 . The vast majority of study participants shopped at supermarkets (61%) or supercenters/warehouse clubs (27%). Shopping at a supercenter or warehouse club as one’s primary store was significantly associated with a 2.6 kg/m2 higher BMI compared to shopping at a supermarket, independent of demographics, socioeconomics, physical activity, and all other food shopping/acquisition behaviors. Persons who reported shopping at a small grocery store or a convenience or dollar store as their tertiary store had a 2.6 kg/m2 lower BMI. Respondents who perceived lack of access to adequate food shopping in their neighborhoods as a problem had higher BMI. Living in a food desert census tract was not significantly associated with BMI. Other shopping attributes, including distance to utilized and nearest grocery stores, were not independently associated with BMI. These findings call into question the idea that poor spatial access to grocery stores is a key underlying factor affecting the obesity epidemic. Future research should consider assessing foods purchased and dietary intake within a comprehensive study of food shopping behaviors and health outcomes among persons living in food deserts