Table 1. Baseline characteristics of primi (PG)- and secundigravidae (SG) followed until delivery in Boromo Health District, Burkina Faso, 2004–2006.

		PG (n = 1,235)		SG (n = 1,005)
Characteristic	Subcategory	N	%	N	%
Age (years)	≤17	393	31.8	30	3.0
	18–19	553	44.8	231	23.0
	≥20	289	23.4	743	73.9
	Missing	0		1	0.1
Matrimonial status	Married monogamous	852	69.0	693	69.0
	Married polygamous	288	23.3	296	29.5
	Single	95	7.7	16	1.6
Formal education	None	960	77.7	798	79.4
	Primary school (1–3 ys)	65	5.3	54	5.4
	Primary school (4–6 ys)	165	13.4	122	12.1
	Secondary and higher	40	3.2	28	2.8
	Missing	5	0.4	3	0.3
SES	Most poor	283	22.9	225	22.4
	Poor	344	27.9	253	25.2
	Less poor	300	24.3	258	25.7
	Least poor	295	23.9	259	25.8
	Missing	13	1.1	10	1.0
Ethnic group	Bwaba	460	37.3	351	34.9
	Dafing	210	17.0	192	19.1
	Ko	144	11.7	123	12.2
	Nounouma	149	12.1	100	10.0
	Mossi	142	11.5	128	12.7
	Peulh	70	5.7	55	5.5
	Other	60	4.9	56	5.6
Religion	Moslem	589	47.7	484	48.2
	Christian	230	18.6	200	19.9
	Traditional	414	33.5	321	31.9
	Missing	2	0.2	0	0
Residence	Village with HC*	619	50.1	551	54.8
	Next HC at ≤5 km	260	21.1	206	20.5
	Next HC at >5 km	356	28.8	248	24.7
Season of delivery	Low transmission	621	50.3	513	51.0
	High transmission	606	49.1	489	48.7
	Missing	8	0.7	3	0.3
Intervention arm	IPTp-SP**+promotion	407	33.0	314	31.2
	IPTp-SP alone	442	35.8	351	34.9
	Weekly CQ	386	31.3	340	33.8

*Health Center.

**Intermittent preventive treatment in pregnancy with sulfadoxine-pyrimethamine.