Disordered eating and suicidal intent: the role of thin ideal internalisation, shame and family criticism.

OBJECTIVE: We explored the effect of thin ideal internalisation, shame proneness and family criticism on disordered eating and suicidal intent in female Mexican adolescents. METHOD: We studied a probabilistic sample of 2537 high school students in central Mexico, stratified by marginalisation status and migratory intensity. We used a generalised logistic regression model to estimate the odds of disordered eating and suicidal intent across scores for three predictors: Internalisation of the thin ideal, shame and family criticism. RESULTS: Disordered eating was reported by 4.2% (95% CI = 0.9-7.5%) and suicidal intent by 13.2% (95% CI = 12.0-14.4%) of girls. The unadjusted odds ratios of any disordered eating for thin ideal internalisation, shame proneness and familial criticism were 1.2, 1.1 and 3.2, respectively. The positive association between thin ideal internalisation and disordered eating remained even after controlling for shame proneness and familial criticism. The association of these variables with suicidal intent was weaker. DISCUSSION: Results support stronger effects for disordered eating than suicidal intent across the three unadjusted predictors. It also highlights the presence of the relationship of criticism and disordered eating in female adolescents from low and middle socio-economic backgrounds.

Predictors of eating behaviors in a sample of Mexican women.

The aim of the study was to develop a model of potential risk factors associated to the development of eating behaviors in Mexican women. A structural equation model was carried out on a sample of 425 women: high school and college students (N=425) with a mean age of 19.1 years (SD=3.8). The variables selected for the model were those that obtained significant correlations with the variable "eating behaviors": criticism by father/mother, depressed mood, body mass index, attitudes and beliefs concerning obesity and dissatisfaction with figure. The model fitted the data well, with a non-significant Chi-square. The proportion of variance explained for eating behavior by the other variables was 59, the direct effects of all the variables were significant, while the total effect of all the variables on eating behavior were also significant, particularly the effects of the "dissatisfaction with figure" and, "attitudes and beliefs concerning obesity". The model yielded similar data to the findings in international literature, since they revealed the influence exerted by social pressure on thinness, the internalization of the socio-cultural ideal of thinness and the role of excess weight in increasing the risk of body dissatisfaction and therefore with the development of eating disorders.