Association between parity and macrosomia in Shaanxi Province of Northwest China

Table 3 Univariate analysis of possible influencing factors of macrosomia

Variables	β	Standard Error	Waldχ²	P	OR (95% CI)
Maternal age
Y < 25	−0.422	0.057	54.138	<0.001	0.656 (0.586, 0.734)
25 ≤ Y < 30	Ref
Y ≥ 30	0.047	0.060	0.615	0.433	1.048 (0.932, 1.180)
Gestational age
W < 37	−0.983	0.228	18.584	<0.001	0.374 (0.239, 0.585)
37 ≤ W < 42	Ref
W ≥ 42	0.414	0.129	10.272	0.001	1.513 (1.175, 1.950)
Region
Southern Shaanxi	Ref
Central Shaanxi	0.155	0.064	5.799	0.016	1.167 (1.029, 1.324)
Northern Shaanxi	0.097	0.074	1.751	0.186	1.102 (0.954, 1.274)
Mother’s education
Junior high school and below	Ref
Senior high school	0.138	0.062	4.992	0.025	1.148 (1.017, 1.297)
College and above	0.428	0.059	53.505	<0.001	1.534 (1.368, 1.721)
Household Wealth Index
Poorest	Ref
Middle	0.180	0.065	7.597	0.006	1.197 (1.053, 1.361)
Richest	0.423	0.074	32.368	<0.001	1.527 (1.320, 1.766)
Residence
Urban area	Ref
Rural area	−0.435	0.054	65.737	<0.001	0.647 (0.582, 0.719)
Mother’s occupation
Peasant/Housework	−0.238	0.049	23.820	<0.001	0.788 (0.717, 0.867)
Other	Ref
Parity
Primipara	Ref
Multipara	0.170	0.049	12.290	<0.001	1.186 (1.078, 1.304)
Gestational diabetes
No	Ref
Yes	1.139	0.321	12.619	<0.001	3.123 (1.666, 5.855)
Sex
Boy	Ref
Girl	−0.602	0.051	139.141	<0.001	0.548 (0.496, 0.605)

ISSN: 1824-7288