Height and Risk of Gestational Diabetes Mellitus: Results from the Healthy Baby Cohort Study

Table 4

ORs (95% CIs) for the association between height and gestational diabetes mellitus.

Height quartiles (cm)	Number of participants	Number of GDM cases	Unadjusted OR (95% CI)	Adjusted OR (95% CI)
≤158.0	1936	317	1.00 (reference)	1.00 (reference)
158.1–161.0	1789	281	0.95 (0.80, 1.13)	0.98 (0.82, 1.17)
161.1–164.0	1567	210	0.79 (0.65, 0.96)	0.82 (0.67, 0.99)
>164.0	1649	209	0.74 (0.61, 0.90)	0.77 (0.64, 0.94)
Per 1 cm increase in height	—	—	0.97 (0.96, 0.99)	0.98 (0.96, 0.99)
values for trend	—	—	<0.001	0.002

OR: odds ratio; CI: confidence intervals; GDM: gestational diabetes mellitus. Not adjusted for any confounders. Adjusted for maternal age, prepregnancy BMI, educational level, occupational status, parity, alcohol consumption before pregnancy, smoking before pregnancy, passive smoking during pregnancy, and physical activity during pregnancy. values for trend were performed by assigning the median values of each quartile of maternal height and fitted this as a continuous variable in a separate regression model.