Table 3

Risk factors at antenatal evaluation for preterm birth among pregnant women who presented to Hôpital Universitaire de Mirebalais (HUM) for antenatal care and returned for facility delivery (n=972)

Variable	Unadjusted			Adjusted
Variable	OR	95% CI	P value	AOR	95% CI	P value
Age (years)
<20	1.81	1.18 to 2.76	0.0061	1.76	1.14 to 2.72	0.01
20–34	Ref			Ref
>34	1.45	1.01 to 2.09	0.046	1.46	1.01 to 2.11	0.044
Distance from town to hospital (km)	0.99	0.97 to 1.01	0.23
Probability of poverty*	1.03	0.98 to 1.09	0.24	1.00	0.95 to 1.06	0.88
Pesticide use in the past year	1.48	0.98 to 2.22	0.06	1.39	0.92 to 2.11	0.12
Alcohol use	1.07	0.57 to 2.02	0.83
Twin pregnancy	1.80	0.63 to 5.11	0.27
First pregnancy	1.05	0.82 to 1.34	0.72
No. of prior live births	1.02	0.93 to 1.13	0.64
No. of prior stillbirths	1.01	0.70 to 1.45	0.97
No. of prior miscarriages	0.85	0.55 to 1.32	0.47
No. of prior abortions	0.81	0.41 to 1.61	0.54
Food Consumption Score
Acceptable	Ref
Borderline	1.15	0.73 to 1.81	0.54
Poor	1.17	0.53 to 2.59	0.70
Household Hunger Scale
No hunger	Ref			Ref
Moderate	1.33	0.92 to 1.90	0.13	1.27	0.88 to 1.83	0.21
Severe	1.66	1.18 to 2.34	0.0038	1.57	1.09 to 2.26	0.02

*Per 0.1 increase in probability of household consumption less than one dollar per day.
HUM, Hôpital Universitaire de Mirebalais; km, kilometre.