Table 4.

Multivariate analysis of socio-demographic factors affecting GWG

	OR (95% CI)	P-value
< 20 vs 20 ~ 25	1.27 (0.84–1.92)	0.263
25 ~ 30 vs 20 ~ 25	1.09 (0.87–1.36)	0.467
30 ~ 35 vs 20 ~ 25	0.76 (0.60–0.96)	0.022
35 ~ 40 vs 20 ~ 25	0.79 (0.59–1.06)	0.112
≥ 40 vs 20 ~ 25	0.73 (0.45–1.19)	0.211
North vs South	1.32 (1.15–1.52)	<  0.001
Minorities vs Han	1.51 (1.02–2.24)	0.041