Weight perception and symptoms of depression in rural Australian adolescents

To investigate associations between measured and perceived weight, and symptoms of depression in rural Australian adolescents.

At baseline a prospective rural adolescent cohort study collected demographic data, measured weight and height, weight self-perception, and presence of depression (Short Mood and Feelings Questionnaire). Using World Health Organisation's (WHO) age and gender body mass index (BMI) standardisations, participants were classified into four perceptual groups: PG1 healthy/perceived healthy; PG2 overweight/perceived overweight; PG3 healthy/perceived overweight; and PG4 overweight/perceived healthy. Logistic regression analyses explored relationships between these groups and symptoms of depression.

Data on adolescents (n = 339) aged 9-14. PG1 contained 63% of participants, PG2 18%, PG3 4% and PG4 14%. Across the cohort, 32% were overweight and 13% had symptoms of depression. PG2 (overweight/perceived overweight) were more likely to experience symptoms of depression than PG1 (healthy/perceived healthy; Adjusted Odds Ratio [AOR] 3.1, 95% CI 1.5-6.7). Females in PG3 (healthy/perceived overweight) were more likely to experience symptoms of depression (38%) than males (14%) and females in PG1 (10%, AOR 5.4, 95% CI 1.1-28.2).

Results suggest that perceptions of being overweight may be a greater predictor for symptoms of depression than actual weight. This has public health implications for youth mental health screening and illness prevention.