Body-image and eating disturbances prospectively predict increases in depressive symptoms in adolescent girls: A growth curve analysis.

Using data from a longitudinal community study (N?=?231), the authors tested whether body-image and eating disturbances might partially explain the increase in depression observed in adolescent girls. Initial pressure to be thin, thin-ideal internalization, body dissatisfaction, dieting, and bulimic symptoms, but not body mass, predicted subsequent increases in depressive symptoms, as did increases in these risk factors over the study. There was also prospective support for each of the hypothesized mediational relations linking these risk factors to increases in depressive symptoms. Effects remained significant when other established gender-nonspecific risk factors for depression (social support and emotionality) were statistically controlled. Results provide support for the assertion that body-image and eating disturbances, operating above and beyond gender-nonspecific risk factors, contribute to the elevated depression in adolescent girls. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Prospective predictors of body dissatisfaction in adolescent girls and boys: A five-year longitudinal study.

This study investigated prospective risk factors for increases in body dissatisfaction in adolescent girls and boys in the Eating Among Teens Project. At the time of first assessment (Time 1), participants were a cohort of early adolescent girls (N=440) and boys (N=366) and a cohort of middle adolescent girls (N=946) and boys (N=764). Participants were followed up 5 years later (Time 2). Potential prospective risk factors examined included body mass index, socioeconomic status, ethnicity, parent dieting environment, peer environment, and psychological factors. Predictors of Time 2 body dissatisfaction were Time 1 body dissatisfaction, body mass index, socioeconomic status, being African American, friend dieting and teasing, self-esteem, and depression. However, the profile of predictors differed across the samples. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Risk factors for body dissatisfaction in adolescent girls: A longitudinal investigation.

Because few prospective studies have examined predictors of body dissatisfaction--an established risk factor for eating disorders--the authors tested whether a set of sociocultural, biological, interpersonal, and affective factors predicted increases in body dissatisfaction using longitudinal data from adolescent girls (N=496). Elevated adiposity, perceived pressure to be thin, thin-ideal internalization, and social support deficits predicted increases in body dissatisfaction, but early menarche, weight-related teasing, and depression did not. There was evidence of 2 distinct pathways to body dissatisfaction--1 involving pressure to be thin and 1 involving adiposity. Results support the contention that certain sociocultural, biological, and interpersonal factors increase the risk for body dissatisfaction, but suggest that other accepted risk factors are not related to this outcome. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Body Image Among Adolescent Girls and Boys: A Longitudinal Study.

This longitudinal study of adolescent girls and boys examined the contributions of social (peer appearance context), psychological (internalized appearance ideals and appearance social comparison), and biological (body mass) factors to the development of body dissatisfaction. Students (165 girls and 139 boys) completed questionnaires when they were either in 7th grade or 10th grade and again 1 year later. The results for the boys revealed a singular pathway to body dissatisfaction through internalized commitment to muscularity ideals. The prospective analyses of change in body dissatisfaction among the girls reflected the contributions of appearance conversations with friends, appearance social comparisons, and body mass. There was no evidence of mediation among the boys and limited support for it among the girls. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Dietary Restraint, Body Dissatisfaction, and Psychological Distress: A Prospective Analysis.

This study uses prospective data from a survey of 1,177 adolescent girls to examine whether emotional eating, binge eating, abnormal attitudes to eating and weight, low self-esteem, stress, and depression are associated with dietary restraint or body dissatisfaction. In analyses that included both restraint and body dissatisfaction as independent predictors, restraint was associated only with more negative attitudes to eating, whereas body dissatisfaction was significantly associated with all the adverse outcomes. These results cast doubt on the proposition that restrained eating is a primary cause of bulimic symptoms, emotional eating, and psychological distress seen in individuals who are trying to control their weight, and rather suggest that body dissatisfaction is the key factor. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Risk factors for disordered eating during early and middle adolescence: Prospective evidence from mainland Chinese boys and girls.

Despite evidence that sociocultural and psychological factors contribute to disordered eating, researchers have yet to examine the extent to which putative risk factors influence vulnerability for girls versus boys within and across phases of adolescence, particularly in non-Western cultures. In this study, early and middle adolescent samples from China (N = 2,909) completed measures of eating disorder pathology and putative risk factors at baseline and were reassessed 12 months later. Among both younger and older girls, elevations in appearance-focused interactions with friends, negative affect, and body dissatisfaction predicted increases in symptomatology at follow-up. In contrast, there was more discontinuity in risk factors relevant to samples of boys. Although media and friendship influences contributed to later disturbances among early adolescent boys, psychological factors, including body dissatisfaction and negative affect, had stronger effects in the multivariate model for older boys. Implications of finding are discussed in relation to adolescent development and a Chinese cultural context. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

A prospective test of the dual-pathway model of bulimic pathology: Mediating effects of dieting and negative affect.

Because there have been few longitudinal investigations of integrative etiological theories of bulimia nervosa, this study prospectively tested the dual-pathway model using random regression growth curve models and data from a 3-wave community sample of adolescent girls (N?=?231). Initial pressure to be thin and thin-ideal internalization predicted subsequent growth in body dissatisfaction, initial body dissatisfaction predicted growth in dieting and negative affect, and initial dieting and negative affect predicted growth in bulimic symptoms. There was prospective evidence for most of the hypothesized mediational effects. Results are consistent with the assertion that pressure to be thin, thin-ideal internalization, body dissatisfaction, dieting, and negative affect are risk factors for bulimic pathology and provide support for the dual-pathway model. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Risk factors for binge eating onset in adolescent girls: A 2-year prospective investigation.

Because little is known about the predictors of binge eating (a risk factor for obesity), a set of putative risk factors for binge eating was investigated in a longitudinal study of adolescent girls. Results verified that binge eating predicted obesity onset. Elevated dieting, pressure to be thin, modeling of eating disturbances, appearance overvaluation, body dissatisfaction, depressive symptoms, emotional eating, body mass, and low self-esteem and social support predicted binge eating onset with 92% accuracy, Classification tree analysis revealed an interaction between appearance overvaluation, body mass, dieting, and depressive symptoms, suggesting qualitatively different pathways to binge eating and identifying subgroups at extreme risk for this outcome. Results support the assertion that these psychosocial and biological factors increase risk for binge eating. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Screening for depression prevention: Identifying adolescent girls at high risk for future depression.

This study investigated a broad array of putative risk factors for the onset of major depression and examined their screening properties in a longitudinal study of 479 adolescent girls. Results indicated that the most potent predictors of major depression onset included subthreshold depressive symptoms, poor school and family functioning, low parental support, bulimic symptoms, and delinquency. Classification tree analysis revealed interactions between 4 of these predictors, suggesting qualitatively different pathways to major depression. Girls with the combination of elevated depressive symptoms and poor school functioning represented the highest risk group, with a 40% incidence of major depression during the ensuing 4-year period. Results suggest that selected and indicated prevention programs should target these high-risk populations and seek to reduce these risk factors. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Body image and strategies to lose weight and increase muscle among boys and girls.

This study examined factors that influence body image and strategies to either lose weight or increase muscle among children. Participants were 237 boys and 270 girls. Body mass index (BMI), body dissatisfaction, cognitions and behaviors to both lose weight and increase muscles, as well as self-esteem and positive and negative affect, were evaluated. Self-esteem was associated with body satisfaction, positive affect predicted strategies to lose weight and increase muscles, and negative affect predicted body dissatisfaction and cognitions to lose weight and increase muscles. Boys were more likely to focus on changing muscles. Respondents with higher BMIs were more focused on losing weight but not muscle. The discussion focuses on health risk behaviors related to eating and exercise among children. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Physical self-concept and self-esteem mediate cross-sectional relations of physical activity and sport participation with depression symptoms among adolescent girls.

The authors tested whether physical self-concept and self-esteem would mediate cross-sectional relations of physical activity and sport participation with depression symptoms among 1,250 girls in 12th grade. There was a strong positive relation between global physical self-concept and self-esteem and a moderate inverse relation between self-esteem and depression symptoms. Physical activity and sport participation each had an indirect, positive relation with global physical self-concept that was independent of objective measures of cardiorespiratory fitness and body fatness. These correlational findings provide initial evidence suggesting that physical activity and sport participation might reduce depression risk among adolescent girls by unique, positive influences on physical self-concept that operate independently of fitness, body mass index, and perceptions of sports competence, body fat, and appearance. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Prospective reciprocal relations between physical activity and depression in female adolescents.

Objective: Although an inverse correlation between physical activity and depression among adolescents has been found in research, this relation has seldom been examined prospectively. Thus, we tested whether physical activity reduces risk for future escalations in depression and whether depression decreases likelihood of future change in physical activity. Method: Data from a longitudinal study involving annual assessments of 496 adolescent girls (mean age = 13 years, SD = 0.73) followed over a 6-year period were analyzed to address these questions. Results: Using analyses that controlled for several covariates, we found that physical activity significantly reduced risk for future increases in depressive symptoms and risk for onset of major–minor depression. Further, depressive symptoms and major–minor depression significantly reduced future physical activity. However, predictive effects were modest for both. Conclusions: Results support a bidirectional relation between exercise and depression and imply that interventions that increase physical activity may reduce risk for depression among this high-risk population. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Binge eating proneness emerges during puberty in female rats: A longitudinal study.

Puberty is a critical risk period for binge eating and eating disorders characterized by binge eating. Previous research focused almost entirely on psychosocial risk factors during puberty to the relative exclusion of biological influences. The current study addressed this gap by examining the emergence of binge eating during puberty in a rat model. We predicted that there would be minimal differences in binge eating proneness during pre-early puberty, but significant differences would emerge during puberty. Two independent samples of female Sprague–Dawley rats (n = 30 and n = 36) were followed longitudinally across pre-early puberty, mid-late puberty, and adulthood. Binge eating proneness was defined using the binge eating resistant (BER)/binge eating prone (BEP) model of binge eating that identifies BER and BEP rats in adulthood. Across two samples of rats, binge eating proneness emerged during puberty. Mixed linear models showed little difference in palatable food intake between BER and BEP rats during pre-early puberty, but significant group differences emerged during mid-late puberty and adulthood. Group differences could not be accounted for by changes in nonpalatable food intake or body weight. Similar to patterns in humans, individual differences in binge eating emerge during puberty in female rats. These findings provide strong confirming evidence for the importance of biological risk factors in developmental trajectories of binge eating risk across adolescence. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Dissonance and healthy weight eating disorder prevention programs: Long-term effects from a randomized efficacy trial.

Adolescent girls with body dissatisfaction (N = 481, SD = 1.4) were randomized to a dissonance-based thin-ideal internalization reduction program, healthy weight control program, expressive writing control condition, or assessment-only control condition. Dissonance participants showed significantly greater decreases in thin-ideal internalization, body dissatisfaction, negative affect, eating disorder symptoms, and psychosocial impairment and lower risk for eating pathology onset through 2- to 3-year follow-up than did assessment-only controls. Dissonance participants showed greater decreases in thin-ideal internalization, body dissatisfaction, and psychosocial impairment than did expressive writing controls. Healthy weight participants showed greater decreases in thin-ideal internalization, body dissatisfaction, negative affect, eating disorder symptoms, and psychosocial impairment; less increases in weight; and lower risk for eating pathology and obesity onset through 2- to 3-year follow-up than did assessment-only controls. Healthy weight participants showed greater decreases in thin-ideal internalization and weight than did expressive writing controls. Dissonance participants showed a 60% reduction in risk for eating pathology onset, and healthy weight participants showed a 61% reduction in risk for eating pathology onset and a 55% reduction in risk for obesity onset relative to assessment-only controls through 3-year follow-up, implying that the effects are clinically important and enduring. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Les relations avec les pairs à l’adolescence comme facteurs de risque de l’insatisfaction à l’égard de l’image corporelle.

The objective of this study is to determine the extent to which certain risk factors in terms of peer relations (e.g., incentives to dieting and negative criticism concerning physical appearance, peer victimization, level of body image dissatisfaction compared to mutual friends of the same sex, and frequency of conversations between friends concerning physical appearance) account for observed changes in the level of body image dissatisfaction (BID) at the onset of adolescence. Information on BID of 594 students of first and second year of secondary school was collected over a period of 2 consecutive years. The results show that certain individual characteristics such as gender, body mass index and general self-esteem of students in the first period are respectively associated with an increase in BID over a 1-year period. After controlling for individual risk factors, the contribution of relational risk factors was found to be not significant. However, the different relational risk factors are closely associated with individual characteristics of students at the beginning of adolescence. The results pattern is similar for girls and boys. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Does Barbie make girls want to be thin? The effect of experimental exposure to images of dolls on the body image of 5- to 8-year-old girls.

[Correction Notice: An erratum for this article was reported in Vol 42(6) of Developmental Psychology (see record 2006-20488-033). A substantive error occurs in the Body shape dissatisfaction section on page 287. The sentence describing the calculation of body shape dissatisfaction scores from girls' responses to the Child Figure Rating Scale should instead read as follows: "A body shape dissatisfaction score was computed by subtracting the girl's actual from her ideal body size."] The ubiquitous Barbie doll was examined in the present study as a possible cause for young girls' body dissatisfaction. A total of 162 girls, from age 5 to age 8, were exposed to images of either Barbie dolls, Emme dolls (U.S. size 16), or no dolls (baseline control) and then completed assessments of body image. Girls exposed to Barbie reported lower body esteem and greater desire for a thinner body shape than girls in the other exposure conditions. However, this immediate negative impact of Barbie doll was no longer evident in the oldest girls. These findings imply that, even if dolls cease to function as aspirational role models for older girls, early exposure to dolls epitomizing an unrealistically thin body ideal may damage girls' body image, which would contribute to an increased risk of disordered eating and weight cycling. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Correction to Dittmar, Halliwell, and Ive (2006).

Reports an error in "Does Barbie make girls want to be thin? The effect of experimental exposure to images of dolls on the body image of 5- to 8-year-old girls" by Helga Dittmar, Emma Halliwell and Suzanne Ive (Developmental Psychology, 2006 Mar, Vol 42[2], 283-292). A substantive error occurs in the Body shape dissatisfaction section on page 287. The sentence describing the calculation of body shape dissatisfaction scores from girls' responses to the Child Figure Rating Scale should instead read as follows: "A body shape dissatisfaction score was computed by subtracting the girl's actual from her ideal body size." (The following abstract of the original article appeared in record 2006-03514-007.) The ubiquitous Barbie doll was examined in the present study as a possible cause for young girls' body dissatisfaction. A total of 162 girls, from age 5 to age 8, were exposed to images of either Barbie dolls, Emme dolls (U.S. size 16), or no dolls (baseline control) and then completed assessments of body image. Girls exposed to Barbie reported lower body esteem and greater desire for a thinner body shape than girls in the other exposure conditions. However, this immediate negative impact of Barbie doll was no longer evident in the oldest girls. These findings imply that, even if dolls cease to function as aspirational role models for older girls, early exposure to dolls epitomizing an unrealistically thin body ideal may damage girls' body image, which would contribute to an increased risk of disordered eating and weight cycling. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Genetic risk factors for disordered eating in adolescent males and females.

The etiologic role of genetic and environmental factors on disordered eating was examined in a sample of 15- to 17-year-old female–female, male–male, and opposite-sex twin pairs. Also assessed was whether a single factor is underlying 3 facets (body dissatisfaction, drive for thinness, bulimia) of disordered eating, including the possible importance of sex differences. Univariate model-fitting analyses indicated that genetic factors are more important for girls and environment more important for boys for body dissatisfaction and drive for thinness. A multivariate common factor analysis indicated that a single factor accounted for the association among these 3 facets of disordered eating in both sexes. However, only 50% of the genetic risk for this factor is shared between the sexes. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Weight, weight-related aspects of body image, and depression in early adolescent girls

This investigation assessed the hypothesis that early adolescent girls with more negative weight-related body images would report higher levels of depressive symptoms. The Beck Depression Inventory was administered, and measures of objective weight and four dimensions of weight-related body image were obtained: self-reported weight, subjective classification of weight from very underweight to very overweight, satisfaction with weight, and concerns about weight. The results indicated that the more subjective and personal measures of weight-related body image discontent--weight dissatisfaction and weight concerns--were associated with increased depressive symptoms, even controlling for objective weight status. These results are discussed in relation to the ontogenesis of body image and the place of body image in personality and the development of depression.     

Obesity as a prospective predictor of depression in adolescent females.

Objective: Both obesity and depression are prominent during adolescence, and it is possible that obesity is a trigger for adolescent depression. The purpose of this paper is to evaluate whether overweight or obese status contributes to the development of depression in adolescent girls. Design: Participants were 496 adolescent girls who completed interview based measures of depression and had their height and weight measured at four yearly assessments. Repeated measures logistic regressions with generalized estimating equations were used to evaluate whether overweight or obese status were associated with major depression or an increase in depressive symptoms the following year. Main Outcome Measures: Major depression and depressive symptoms were evaluating using a modified version of the K-SADS interview. Overweight and obese status was determined by using standardized protocols to measure height and weight. Results: Results showed that obese status, not overweight status, was associated with future depressive symptoms, but not major depression. This study demonstrated that obesity is a risk factor for depressive symptoms, but not for clinical depression. Conclusions: As depressive symptoms are considered along the spectrum of depression with clinical depression at the high end, these results suggest that weight status could be considered a factor along the pathway of development of depression in some adolescent females. (PsycINFO Database Record (c) 2010 APA, all rights reserved)