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 ORa (95% CI) | Adjusted ORb (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) |
| P values for trendc | — | — | <0.001 | 0.002 |
OR: odds ratio; CI: confidence intervals; GDM: gestational diabetes mellitus. aNot adjusted for any confounders. bAdjusted 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. cP 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.