Breast may not always be best: moderation of effects of postnatal depression by breastfeeding and infant sex

Table 2 Bivariate associations and descriptive statistics for females (N = 424)

	9 week IBQ	14 month IBQ	9 week EPDS	Breast fed	Younger maternal age	Stroking	Birthweight by gestational age	Obstetric risk	Left school aged 16	Married	Smoked	Most deprived quintile
9 week IBQ		0.28***	0.31***	0.08	− 0.05	0.01	− 0.02	− 0.04	− 0.04	0.01	− 0.11⁺	− 0.06
14 month IBQ			0.20***	− 0.04	0.17**	− 0.03	− 0.05	0.06	0.04	0.11*	− 0.01	0.01
9 week EPDS				− 0.08	0.05	0.01	− 0.02	− 0.03	− 0.01	0.10*	− 0.01	0.01
Breastfed					− 0.15***	− 0.02	0.05	0.09⁺	− 0.37***	− 0.41***	− 0.43***	− 0.28**
Mean	2.53	3.26	5.41		26.62	3.86	84.41	2.20
SD	0.60	0.97	4.61		5.39	0.72	12.20	1.20
N				105					99	75	50	131
%				25.1					22.9	17.3	11.7	37.4

Significant results are highlighted in bold
IBQ Infant Behaviour Questionnaire, EPDS Edinburgh Postnatal Depression Scale
*p < 0.05, **p < 0.01, ***p < 0.001

ISSN: 2042-6410