Establishment and evaluation of a risk prediction model for gestational diabetes mellitus

Table 3 Multivariate logistic regression analysis results of gestational diabetes mellitus

Items	β	SE	Wald	P valuea	OR (95%CI)
Family history of DM	1.340	0.472	8.061	0.005	3.818 (1.514-9.626)
Hypertension	1.674	0.643	6.772	0.009	5.335 (1.512-18.825)
GDM	1.201	0.519	5.353	0.021	3.323 (1.201-9.192)
Giant infant	2.269	0.647	12.312	< 0.001	2.653 (1.284-5.483)
Pre-pregnancy BMI (kg/m2)	0.233	0.055	18.059	< 0.001	1.263 (1.134-1.406)
Hb (g/L)	0.071	0.018	14.867	< 0.001	1.073 (1.035-1.112)
Triglyceride (mmol/L)	0.792	0.249	10114	0.001	2.207 (1.355-3.596)
Serum ferritin (ng/mL)	0.070	0.010	44.508	< 0.001	1.072 (1.050-1.094)
First-trimester fasting hyperglycemia (mmol/L)	1.887	0.350	29.110	< 0.001	6.602 (3.326-13.105)

^aP < 0.05 was considered significant. BMI: Body mass index; DM: Diabetes mellitus; GDM: Gestational diabetes mellitus; Hb: Hemoglobin; SE: Standard error; OR: Odd ratio; CI: Confidence interval.