Table 2: Socio-demographic characteristics- Mothers with different levels of postpartum distress (PD)

Socio-demographic characteristic	Low PD N:856		Medium PD N:249		High PD N:63		P values1
	n/N	Mean, %	n/N	Mean, %	n/N	Mean, %
Mother's age, mean	851	32.2	245	31.7	63	31.1	.0940
Older mother (33-48), %	418/851	49.1	100/245	40.8	27/63	42.9	.0570
First-born child, %	352/856	41.1	133/249	53.4	34/63	54.0	.0008
Male child, %	408/856	47.7	142/249	57.0	36/63	57.1	.0178
Mother's country of birth not Sweden, %	131/852	15.4	49/245	20.0	9/63	14.3	.2039
Mother's education elementary or less, %	85/847	10.0	20/248	8.1	4/63	6.3	.4477
Mother' education university, %	383/847	45.2	113/248	45.6	23/63	36.5	.3926
Single mother, %	40/855	4.7	25/249	10.0	10/63	15.9	< .0001
1 Statistical methods: Mean: ANOVA. Percentages: X2. DF=2.