Table 5.

Multivariable logistic regression analysis of risk factors for gestational diabetes mellitus

Risk factors	OR	95% CI	P value
BMI, kg/m2			<0.001
23–25	2.251	0.864–5.861	0.097
25–30	4.779	2.065–11.061	<0.001
≥30	6.492	2.202–19.140	0.001
Previous GDM	6.137	1.862–20.228	0.003
TG >250 mg/dL	11.117	2.900–42.613	<0.001
FBS ≥100 mg/dL	14.305	3.744–54.656	<0.001

Multivariable logistic regression analysis is conducted using variables chosen with a P value of <0.05 in the univariable analysis with backward elimination (BMI, previous gestational diabetes, first-degree relative with diabetes, chronic hypertension, TG >250 mg/dL, and impaired fasting glucose).

OR, odds ratio; CI, confidence interval; BMI, body mass index; GDM, gestational diabetes mellitus; TG, triglyceride; FBS, fasting blood glucose.