Table 3.

Multivariate analysis of the predictive factors for SMO

	crude OR (95%CI)	adjusted OR (95%CI)
Age (N = 642)
< 20	2.45 (1.18–5.1)	1.20 (0.37–3.86)
20–35	1	1
> 35	1.47 (0.99–2.15)	1.63 (0.99–2.68)
Marital status (N = 640)
Married	1	1
Unmarried	2.95 (1.69–5.14)	3.53 (1.43–8.71)
Profession (N = 641)
Farmer	1	1
Other profession	3.52 (0.83–14.89)	4.33 (0.69–27.37)
Unimployed	19.04 (2.39–151.28)	0.68 (0.01–47.62)
ANC (N = 626)
0	3.54 (1.92–6.53)	0.51 (0.21–1.21)
1	1.53 (0.79–2.96)	0.48 (0.19–1.13)
2 to 3	1.02 (0.61–1.72)	0.68 (0.39–1.20)
≥ 4	1	1
Gestational age (N = 594)
< 24 weeks	148.36 (20.17–1091.30)	190.15 (22.62–1598.87)
24–36 weeks	126.11 (17.07–931.54)	167.48 (21.94–1278.32)
≥ 37 weeks	1	1

cOR and aOR in bold are statistically significant