Comparisons of body size in boys after adjusting for confounders among 4 dioxin groups.

a: pMean: adjusted mean, SE: standard error, p: p-value, abs. value: absolute value, age adj. Z: age adjusted z score.Confounders for measurements of body size: parity (primipara or not), maternal age, weight, educational period (years), alcohol drinking during pregnancy (yes/no), family income, family smoking (yes/no), gestational weeks, infant age (days) on the day of each examination, and location difference (TK or ST hospital).Confounders for z scores of body size: parity (primipara or not), maternal age, weight, educational period (years), alcohol drinking during pregnancy (yes/no), family income, family smoking (yes/no), gestational weeks, and location difference (TK or ST hospital).Note: Body size at 1 month was missing for 2 boys.