Idia B. Thurston

Helpful or harmful? Prospective association between weight misperception and weight gain among overweight and obese adolescents and young adults

Background/Objective:Weight misperception is common among adolescents with obesity, but it is not known whether weight perception is related to future weight gain. The objective of the study was to examine the prospective association between accurate weight perception versus weight misperception and weight change among youth who are overweight or obese.Subjects/Methods:Using a subsample of The National Longitudinal Study of Adolescent to Adult Health Wave II cohort, we used linear regression modeling (adjusted for age, baseline body mass index (BMI), parental education, household percent federal poverty level, depression, race and ethnicity) to examine the prospective association between weight misperception (that is, perceiving oneself to be under or normal weight) among 2738 overweight and obese youth and subsequent BMI change from Wave II (1996) to Wave IV (2008–2009). Mean age at baseline (Wave II) was 15.9 (0.1).Results:Fifty-seven percent of males and 80% of females accurately perceived themselves as overweight. In fully adjusted models, weight misperception was associated with less BMI gain among youth who were overweight and obese. Specifically, youth who perceived themselves to be at a healthy weight had lower BMI gains (males: β= −1.43, 95% confidence interval (CI)=(−2.26, −0.60), P=0.001; females: β= −1.35, 95% CI=(−2.59, −0.11), P=0.035) from Wave II to IV relative to those who accurately perceived themselves as overweight or obese.Conclusions:Contrary to commonly held assumptions, weight misperception among a non-clinical sample of youth who were overweight or obese predicted lower future weight gain. Efficacy of efforts to correct weight misperception should be rigorously examined to assess for both intended and unintended consequences.

Weight misperception among young adults with overweight/obesity associated with disordered eating behaviors.

OBJECTIVE The purpose of this study was to examine the cross-sectional association between weight misperception among young adults with overweight/obesity and disordered eating behaviors. METHOD In a subsample of young adults with overweight or obesity participating in Wave III (2001-2002) of The National Longitudinal Study of Adolescent to Adult Health (n = 5,184), we examined the cross-sectional association between weight under-perception (i.e., perceiving oneself to be at a healthy body weight or underweight) and disordered eating (fasting/meal skipping for weight control, purging/pills for weight control, overeating/loss of control eating, and use of performance-enhancing products/substances). RESULTS About 20% of young adult females under-perceived their weight compared to 48% of males. Individuals who misperceived their weight as healthy were significantly less likely to report fasting/meal skipping (Females: OR: 0.25, 95% CI: 0.14-0.43; Males: OR: 0.31, 95% CI: 0.20-0.48) and vomiting or taking diet pills/laxatives/diuretics (Females: OR: 0.10, 95% CI: 0.04-0.25; Males: OR: 0.10, 95% CI: 0.04-0.25) for weight control. Among females, those who misperceived their weight status as healthy were also less likely to report overeating or loss of control eating (OR: 0.41, 95% CI: 0.24-0.71). Greater use of performance-enhancing products/substances was seen among males who under-perceived their weight as healthy (OR: 2.06, 95% CI: 1.57-2.72) and among both females (OR: 2.29, 95% CI: 1.40-20.0) and males (OR: 2.27, 95% CI: 1.13-4.55) who perceived themselves to be underweight. DISCUSSION Weight under-perception among young adults with overweight/obesity may convey some benefit related to disordered eating behaviors, but could be a risk factor for the use of performance-enhancing products/substances.

Racial/ethnic differences in accuracy of body mass index reporting in a diverse cohort of young adults

Surveillance data describing the weight status of the US population often rely on self-reported height and weight, despite likely differences in reporting accuracy by demographics. Our objective was to determine if there were racial/ethnic differences in accuracy of self-reported body mass index (BMI) in a diverse nationally representative sample of young people. Using data from Wave III (data collected in 2001–2002) of the National Longitudinal Study of Adolescent Health when respondents were aged 18–26, we used gender-stratified multivariable linear regression models to examine the association of race/ethnicity and self-reported BMI controlling for measured BMI while also adjusting for factors known to be associated with weight self-perception. Black males and females (bFemale=0.45, confidence interval (CI): 0.19, 0.71; bMale=0.34, CI: 0.17, 0.51) and Hispanic females (bFemale=0.30, CI: 0.08, 0.52) and Native American males (bNative American=0.87, CI: 0.15, 1.58) reported higher BMIs than their similarly weighted White peers, leading to more accurate BMI reporting in these groups at higher BMIs. Caution should be taken in interpreting results from studies relying on self-reported BMI, as they may exaggerate racial/ethnic differences in weight status.

Correlates of sexual risk among sexual minority and heterosexual South African youths.

We explored psychosocial correlates of sexual risk among heterosexual and sexual minority youths (SMYs) in Johannesburg, South Africa. Young people 16 to 18 years old (n = 822) were administered surveys assessing demographic characteristics, sexual behaviors, mental health, and parent-child communication. Adjusted multivariate regressions examining correlates of sexual risk revealed that SMYs had more sexual partners than heterosexual youths (B = 3.90; SE = 0.95; P < .001) and were more likely to engage in sex trading (OR = 3.11; CI = 1.12-8.62; P < .05). South African SMYs are at increased risk relative to their heterosexual peers.

Prospective Association Between Overvaluation of Weight and Binge Eating Among Overweight Adolescent Girls

PURPOSE We investigated whether overvaluation of weight, defined as having a high degree of concern with weight such that it unduly influences self-evaluation, was prospectively associated with binge eating onset among overweight adolescent girls and whether overvaluation of weight signaled greater impairment among those with weekly binge eating. METHODS We used generalized estimating equations to assess the prospective association between weight overvaluation at Time 1 and the onset of weekly binge eating at Time 2 among 767 overweight adolescent girls (ages 12-18 years) participating in the Growing Up Today Study. In a cross-sectional analysis of overweight girls with weekly binge eating at Time 2, we examined whether overvaluation of weight was associated with greater impairment assessed by examining their rates of more severe depressive symptoms and low subjective social status. RESULTS At Time 1, 24.5% of overweight/obese girls overvalued weight. Overweight girls who overvalued weight were more likely to have started binge eating weekly 2 years later (odds ratio, 2.9; 95% confidence interval [CI], 1.2-7.3). Among overweight girls who reported weekly binge eating at Time 2, those who overvalued weight were at greater risk of having more severe depressive symptoms (odds ratio, 10.4; 95% CI, 1.3-85.6). Also among girls with weekly binge eating at Time 2, we saw a significant association between continuous measures of overvaluation and subjective social status (β, .71; 95% CI, .08-1.34) but not in analyses using binary measures. CONCLUSIONS We found that overvaluation was associated with the development of weekly binge eating in overweight girls and with greater impairment among those with weekly binge eating.

Qualitative Comparison of Barriers to Antiretroviral Medication Adherence Among Perinatally and Behaviorally HIV-Infected Youth

Medication adherence among youth living with HIV (28%–69%) is often insufficient for viral suppression. The psychosocial context of adherence barriers is complex. We sought to qualitatively understand adherence barriers among behaviorally infected and perinatally infected youth and develop an intervention specific to their needs. We conducted in-depth interviews with 30 youth living with HIV (aged 14–24 years) and analyzed transcripts using the constant comparative method. Barriers were influenced by clinical and psychosocial factors. Perinatally infected youth barriers included reactance, complicated regimens, HIV fatigue, and difficulty transitioning to autonomous care. Behaviorally infected youth barriers included HIV-related shame and difficulty initiating medication. Both groups reported low risk perception, medication as a reminder of HIV, and nondisclosure, but described different contexts to these common barriers. Common and unique barriers emerged for behaviorally infected and perinatally infected youth reflecting varying HIV experiences and psychosocial contexts. We developed a customizable intervention addressing identified barriers and their psychosocial antecedents.

Relating shape/weight based self-esteem, depression, and anxiety with weight and perceived physical health among young adults

Simultaneous contributions of self-esteem, depression, and anxiety to weight and perceived physical health in young adults is understudied. A diverse sample of 424 young adults completed measures of shape/weight based self-esteem, depression, anxiety, and perceived physical health. Height and weight were measured to calculate body mass index (BMI). Latent profile analysis was conducted to derive patterns of depression, anxiety, and shape/weight based self-esteem. Then, we examined the association of the profiles with weight status and perceived physical health. Three profiles emerged: (1) High Shape/Weight Influence (HSWI); (2) Low Shape/Weight, Depression, & Anxiety Influence (LSWDAI); and (3) High Depression & Anxiety Influence (HDAI). The HSWI profile had significantly higher BMI than the LSWDAI and HDAI profiles, and significantly lower perceived physical health than the LSWDAI profile. Over emphasis on shape/weight, regardless of depression and anxiety, is associated with elevated weight and negative internalized health views.

To Screen or Not to Screen: Overreliance on Risk Without Protective Factors in Violence Research

Partner violence in the United States has received ubiquitous media attention over the past several months, with an overdue sexual assault reckoning unfolding across the country. This stance has resulted in a seismic shift in the cultural acceptance of traditional gender norms and decreased tolerance for dating violence perpetration. Thus, the timeliness of Cohen et al’s1 article, “Predicting Teen Dating Violence Perpetration,” cannot be understated. Their focus on developing an algorithm to identify which adolescents are most likely to perpetrate partner violence has significant ramifications, not only for adolescents but also for their broader social ecology. In this commentary, we draw attention to the risks and benefits of using such a screening process in research and clinical work as well as to the need for a more balanced assessment of multilevel protective factors. Last, we highlight the value of using syndemics2 (ie, the co-occurrence of multiple epidemics) as a guiding theory for future research on teen-aged dating violence. Cohen et al1 are to be commended for their innovative research, in which they used statistically driven methods (ie, net … Address correspondence to Idia B. Thurston, PhD, Department of Psychology, The University of Memphis, 310 Psychology Building, Memphis, TN 38152. E-mail: bthrston{at}memphis.edu

Systemic Factors Associated With Prosocial Skills and Maladaptive Functioning in Youth Exposed to Intimate Partner Violence

Children are frequently present in homes in which intimate partner violence (IPV) occurs. Following exposure to IPV, children may develop behavioral health difficulties, struggle with regulating emotions, or exhibit aggression. Despite the negative outcomes associated with witnessing IPV, many children also display resilience. Guided by Bronfenbrenners bioecological model, this study examined person-level, process-level (microsystem), and context-level (mesosystem) factors associated with positive and negative functioning among youth exposed to IPV. Participants were 118 mothers who reported on their 6- to 14-year-old children. All mothers experienced severe physical, psychological, and/or sexual IPV in the past 6 months. Linear regression modeling was conducted separately for youth maladaptive functioning and prosocial skills. The linear regression model for maladaptive functioning was significant, F(6, 110) = 9.32, p < .001, adj R2 = 27%, with more severe IPV (β = .18, p < .05) and more negative parenting practices (β = .34, p < .001) associated with worse child outcomes. The model for prosocial skills was also significant, F(6, 110) = 3.34, p < .01, adj. R2 = 14%, with less negative parenting practices (β = -.26, p < .001) and greater community connectedness (β = .17, p < .05) linked to more prosocial skills. These findings provide critical knowledge on specific mutable factors associated with positive and negative functioning among children in the context of IPV exposure. Such factors could be incorporated into strength-based interventions following family violence.

Protective factors associated with resilience in women exposed to intimate partner violence

Objective: Examining individual, relational, community, and cultural variables can provide new knowledge about protective factors associated with resilience in women exposed to intimate partner violence (IPV). Controlling for demographics and circumstances of the violence, this study evaluated predictors of resilience, including spirituality, social support, community cohesion, and ethnic identity. Method: The sample consisted of 112 women (Mage = 32.12, SD = 5.78) exposed to physical, psychological, and/or sexual IPV in the past 6 months. Approximately 70% of participants were Black. Hierarchical linear regression modeling was conducted to examine factors related to resilience. Model 1 included demographics (age, education, and socioeconomic status) and stressful life experiences. Model 2 added circumstances of the violence: IPV severity, IPV perpetration by participant, and number of violent partners. The third and final model added spirituality, social support, community cohesion, and ethnic identity. Results: The final model was significant, F(11, 97) = 6.63; p < .001, adj. R2 = 36.5%, with greater social support (ß = .24; p = .009), more spirituality (ß = .28; p = .002), and fewer violent relationships (ß = −.25; p = .003) predicting higher resilience among women exposed to IPV. Conclusion: Although risk factors associated with IPV are well researched, little is known about factors related to resilient functioning, especially among minority populations. Knowledge gained from this study can advance the field of violence research by its identification of potentially mutable variables related to resilience. Such research could be applied to developing strength-based interventions for at-risk populations of violence-exposed women.