Jansen, P.W.

study pregnancy women birth children health problem child level preterm birth reference score factor association weight preterm difference status generation r study mother birth weight characteristic family growth dutch behavioural problems effect model analyses education inequality outcome infant *** behavioural chapter rotterdam parent generation behaviour temperament research discipline netherland smoking pregnancy outcomes group table immigration complication pregnancy complications origin covariate result psychopathology immigrant scale delivery family risk factors variable immigration characteristics risk factors birthweight postpartum depression population stress employment <0.001 head circumference epidemiol income circumference questionnaire childhood determinant psychiatry family income non-western indicator parity