[Association between self-assessed somatotypes and symptom depression among children and adolescents]

To examine the association between self-assessed somatotypes and depression related symptoms.

The study sample included 5555 students aged 9 to 18 years who had attended the Physical Fitness and Health Surveillance of Chinese School Students (2010) in Chizhou city, Anhui province. Association between self-assessed somatotypes, body mass index (BMI) and depression symptom were examined.

There was a slight consistency between self-assessed somatotypes and BMI in both boys and girls (Kappa = 0.217, P = 0.000; Kappa = 0.203, P = 0.000). Significant difference in the prevalence of depression was found among weight misperception groups in both genders (χ(2) = 145.223, P = 0.000). The prevalence of underestimation of somatotypes was significantly higher in boys than in girls, while the result was reversive on the prevalence of overestimation. Additionally, the prevalence of depression was higher in girls than in boys (χ(2) = 5.199, P = 0.023). Through logistic regression, data showed that self-assessed somatotypes and miscalculated groups were significantly associated with depressive symptoms. Compared to the group that self-assessment as being normal, those students when self-assessed as being slim, overweight or obesity were more likely to be depressive, with odds ratio (ORs) as 1.255 (95%CI: 1.066 - 1.478), 1.538 (95%CI: 1.275 - 1.856) and 1.713 (95%CI: 1.035 - 2.834), respectively. Overestimated and underestimated somatotypes appeared to be risk factors causing symptoms of depression (OR = 1.705, 95%CI: 1.382 - 2.105; OR = 1.241, 95%CI: 1.059 - 1.454).

Slight consistency was found between self-assessed somatotypes and BMI, while the misjudged somatotypes were the risk factor related to depressive symptoms. It was suggested that life skills education should be carried out as preventive intervention approach, to improve the physical and mental health well-being of children and adolescents.