Table IV.

Subgroup analysis stratified by maternal education (less than high school [<9 years] and at least some high school [≥9 years]): Multivariable logistic regression analysis^* of maternal and neonatal outcomes associated with glyburide compared to subcutaneous insulin.

	Education <9 years, (n = 1517)		Education ≥9 years, (n = 7435)
	aOR	95% CI	aOR	95% CI
Maternal outcome
Cesarean delivery
Overall cesarean	0.72	0.54–0.97	0.81	0.71–0.92
Primary cesarean	0.87	0.58–1.31	0.92	0.79–1.08
Neonatal outcome
Preterm delivery
<37 weeks	1.65	1.08–2.52	1.03	0.84–1.26
<34 weeks	2.05	0.88–4.83	1.43	0.91–2.27
Birtdweight
>4000 g	1.14	0.76–1.72	1.07	0.88–1.31
>4500 g	0.9	0.11–1.90	1.19	0.83–1.70
Birthweight >90th centile	1.17	0.83–1.67	1.06	0.89–1.26
Intrauterine fetal demise	0.82	0.09–7.72	3.33	1.14–9.74
Neonatal intensive care unit admission†	3.47	1.70–7.08	1.13	0.77–1.65

Reference comparison group: women treated with subcutaneous insulin injections.

^*Multivariable logistic regression controlling for potential confounding covariates, including maternal age, parity, ethnicity, gestational age at GDM diagnosis, gestational weight gain, primary language, and prepregnancy BMI.

^†In term pregnancies (gestational age at delivery >37 weeks) only.