Body dissatisfaction and dieting in 4,952 Norwegian children aged 11-15 years: less evidence for gender and age differences.

A number of studies have shown that dieting and body dissatisfaction are highly frequent among adolescents. We here describe the relationship between dieting and body dissatisfaction in 4,952 children selected from the 11, 13 and 15 year age cohorts of the Norwegian national sample in the multinational WHO survey "Health Behavior in School Children". Body dissatisfaction was defined as the subjective experience of being a bit or much too fat and, using this definition, about 20% of the boys reported body dissatisfaction and 7% that they were on a diet. About 37% of the girls reported body dissatisfaction and 15% that they were on a diet. Within the age cohorts, respectively 22%, 30% and 32% reported body dissatisfaction, whereas about 40% overall indicated no body dissatisfaction. Being on a diet was reported by 8% of the 11-year olds, and subsequently increased to 10% (13 years) and 14% (15 years). Multiple regression analysis showed that body dissatisfaction explained 33% of the variance in dieting behaviour, and that the overall effect of gender and age was small. Dieting and body dissatisfaction should therefore be recognised as being equally important among boys, and be counteracted within the framework of a health promotion strategy aimed at the general adolescent population.