Table 1. Socio-demographic and reproductive characteristics of the study population according to types of childhood abuse in Lima, Peru.

Characteristics	All participants (N = 2970)		No abuse (N = 839)		Physical abuse only (N = 1148)		Sexual abuse only (N = 233)		Physical and sexual abuse (N = 750)		P-value
	n	%	n	%	n	%	n	%	n	%
Age (years) a	28.1 ± 6.3		27.7 ± 6.1		28.1 ± 6.4		28.2 ± 6.5		28.7 ± 6.3		0.02
Age (years)
18-20	162	5.5	39	4.6	67	5.8	15	6.4	41	5.5	0.01
20-29	1662	56.0	514	61.3	635	55.3	129	55.4	384	51.2
30-34	610	20.5	155	18.5	235	20.5	40	17.2	180	24.0
≥35	536	18.0	131	15.6	211	18.4	49	21.0	145	19.3
Education (years)
≤6	127	4.3	37	4.4	49	4.3	5	2.1	36	4.8	0.66
7-12	1625	54.7	469	55.9	624	54.4	125	53.6	407	54.3
>12	1211	40.8	331	39.5	473	41.2	101	43.3	306	40.8
Mestizo ethnicity	2228	75.0	641	76.4	854	74.4	180	77.3	553	73.7	0.45
Married/living with a partner	2396	80.7	691	82.4	930	81.0	179	76.8	596	79.5	0.21
Employed	1370	46.1	383	45.6	515	44.9	113	48.5	359	47.9	0.53
Access to basic foods		0.0		0.0		0.0		0.0		0.0
Hard	1475	49.7	350	41.7	560	48.8	127	54.5	438	58.4	<0.0001
Not very hard	1493	50.3	489	58.3	586	51.0	106	45.5	312	41.6
Nulliparous	1446	48.7	452	53.9	547	47.6	116	49.8	331	44.1	0.001
Planned pregnancy	1225	41.2	368	43.9	482	42.0	92	39.5	283	37.7	0.09
Gestational age at interview a	9.2 ± 3.5		9.3 ± 3.4		9.3 ± 3.5		9.3 ± 3.3		9.2 ± 3.6		0.94
Early pregnancy body mass index (kg/m2)
<18.5	59	2.0	21	2.5	23	2.0	4	1.7	11	1.5	0.49
18.5-24.9	1425	48.0	385	45.9	563	49.0	121	51.9	356	47.5
25-29.9	1087	36.6	323	38.5	414	36.1	77	33.0	273	36.4
≥30	366	12.3	93	11.1	143	12.5	26	11.2	104	13.9
Intimate partner violence b	1090	36.7	202	24.1	383	33.4	101	43.3	404	53.9	<0.0001

Due to missing data, percentages may not add up to 100%.

^amean ± SD (standard deviation)

^bLifetime intimate partner violence

For continuous variables, P-value was calculated using the ANOVA; for categorical variables, P-value was calculated using the Chi-square test.