Table 4.

Associations of maternal early-pregnancy glucose concentrations with the risks of gestational hypertensive disorders (n = 5,459)

Maternal early-pregnancy glucose concentrations, mmol/l	Gestational hypertension (95% confidence interval), n = 203	Preeclampsia (95% confidence interval), n = 131	Any gestational hypertensive disorder (95% confidence interval), n = 334
Basic model	1.01 (0.86 to 1.20)	0.98 (0.81 to 1.17)	0.95 (0.83 to 1.09)
Main model	1.02 (0.86 to 1.20)	0.87 (0.70 to 1.09)	0.96 (0.84 to 1.10)
BMI model	0.98 (0.82 to 1.18)	0.88 (0.69 to 1.11)	0.94 (0.81 to 1.09)

Values are ORs (95% CI) from logistic regression models, reflecting differences in risk of gestational hypertensive disorders, per 1 mmol/l increase in maternal early-pregnancy non-fasting glucose concentrations. Estimates are from multiple imputed data. Basic model: adjusted for gestational age at glucose measurement. Main model: gestational age at glucose measurement, maternal ethnicity, age, parity, educational level, smoking, and folic acid supplement use. BMI model: main model additionally adjusted for maternal prepregnancy BMI. Abbreviations: BMI, body mass index; CI, confidence interval; ORs, odds ratios.