Does father's unemployment put the fetus at risk?

Information concerning 15 037 singleton deliveries in 1970 showed that among the 3.5% where the male head of the household was unemployed there was no significant excess of low birthweight or preterm delivery, once social class had been taken into account. There were major differences, however, in maternal health behaviour. In order to ascertain whether the health behaviour might be a consequence of the unemployment, data were also analysed for the 658 pregnancies in women whose husbands, though employed at delivery, were subsequently unemployed. Almost identical patterns were found, implying that the association with health behaviour was not a time-related consequence of unemployment.