Odds ratios (95% CI) for obesity at age 50, according to parental social class, childhood neurological function, educational qualifications, occupational levels, traits extraversion and conscientiousness, psychological distress, and physical exercise.

Note: *p<.05; **p<.01;***p<.001. b Adjusted for birth weight and gestation, childhood BMI, maternal and paternal BMI, and teachers’ assessment of children’s behavioural adjustment; c Adjusted for all factors in model 2 and childhood intelligence; d Adjusted for all factors in model 3 and diet. † P-values of model 4 after adjusting for birth weight and gestation, childhood BMI, behavioural adjustment, and intelligence, maternal and paternal BMI, and diet.