In a second sensitivity analysis, adjusting for recent infections or current morbidity showed no substantial changes in results, though in model 3 the effect of attitude towards the pregnancy was attenuated to marginal significance in men (β = -0.38, p = .088), as was the effect of birth weight in women (β = -0.0004, p = .068).
Due to sex differences in associations of parental SEP with health outcomes related to AL [ 28 – 33 ], and because formal tests of interaction with sex were significant ( p < .05) or marginally significant ( p < .10) for four factors (maternal smoking in the final trimester ( p = .058), complications at birth ( p = .072), maternal BMI ( p = .011) and not living with parents at one year ( p = .032), all analyses were stratified by sex.