Table 2.

Risk of adverse outcomes in women exposed to oral cholera vaccine in simple and multivariable models

	Women exposed to oral cholera vaccine			Women not exposed to oral cholera vaccine			Crude estimate		Adjusted estimate
	Total samples	Number of cases	Incidence per 1000 (95% CI)	Total samples	Number of cases	Incidence per 1000 (95% CI)	Relative risk (95% CI)	p value	Relative risk (95% CI)	p value
Pregnancy loss	835*	23	27·54 (18·41–41·23)	835*	18	21·56 (13·65–34·04)	1·28 (0·69–2·40)	0·43	1·24 (0·64–2·43)†	0·52
Stillbirth	835	17	20·36 (12·72–32·59)	835	16	19·16 (11·79–31·13)	1·06 (0·53–2·12)	0·86	1·17 (0·56–2·44)‡	0·68
Spontaneous miscarriage§	835	6	7·18 (3·24–15·95)	835	2	2·39 (0·60–9·56)	3·01 (0·61–14·98)	0·18	..	..
Neonatal death§	679¶	8	11·78 (5·92–23·46)	673¶	6	8·91 (4·02–19·77)	1·32 (0·46–3·84)	0·60	..	..
Malformation§	822‖	2	2·43 (0·61–9·70)	823‖	1	1·22 (0·17–8·62)	2·00 (0·18–22·04)	0·57	..	..

^*Number of pregnancies.

^†Adjusted for illegal drug use, consumption of tea or coffee, and distance from household to the nearest treatment centre (three most significantly different characteristics).

^‡Adjusted for consumption of tea or coffee and distance from household to the nearest treatment centre.

^§Adjusted estimate not calculated because there were too few events for the adjusted model.

^¶Excluded alive children visited before 28 days after delivery.

^‖Number of livebirths.