Table 3.
Results of univariable and multivariable logistic regression for presence or absence of gestational diabetes mellitus (GDM) in 4610 women at Sunshine Hospital, Australia.
| Characteristics | GDM | Univariable analysis | Multivariable† analysis | |||
|---|---|---|---|---|---|---|
| GDM (n) | No GDM (n) | Odds ratio (95% CI) | p value | Odds ratio (95% CI) | p value | |
| Country of birth | ||||||
| Australia or New Zealand | 175 | 1757 | 1.00 | 1.00 | ||
| Arab States | 12 | 99 | 1.21 (0.65, 2.24) | 0.55 | 1.33 (0.71, 2.50) | 0.37 |
| West and Central Asia | 22 | 116 | 1.89 (1.17, 3.06) | 0.01 | 2.47 (1.50, 4.05) | <0.001 |
| Southeast Asia | 161 | 761 | 2.11 (1.68, 2.66) | <0.001 | 3.03 (2.34, 3.93) | <0.001 |
| East Asia | 37 | 117 | 3.16 (2.11, 4.71) | <0.001 | 4.77 (3.12, 7.31) | <0.001 |
| South Asia | 136 | 537 | 2.59 (2.03, 3.30) | <0.001 | 3.38 (2.60, 4.40) | <0.001 |
| Africa | 34 | 320 | 1.12 (0.77, 1.63) | 0.56 | 1.24 (0.83, 1.84) | 0.29 |
| Latin America | 4 | 37 | 0.73 (0.42, 1.29) | 0.28 | 0.90 (0.51, 1.60) | 0.72 |
| Oceania | 11 | 72 | 1.06 (0.37, 3.00) | 0.91 | 0.94 (0.33, 2.70) | 0.91 |
| Europe and North America | 14 | 188 | 1.52 (0.79, 2.91) | 0.21 | 1.12 (0.57, 2.19) | 0.74 |
| Age (per year) | ||||||
| 25th centile (<26 years) | 144 | 1216 | 1.00 | 1.00 | ||
| 50th centile (≥26 and <29 years) | 121 | 888 | 1.15 (0.89, 1.49) | 0.28 | 1.02 (0.78, 1.33) | 0.88 |
| 75th centile (≥29 and <33 years) | 146 | 1040 | 1.19 (0.93, 1.51) | 0.17 | 1.05 (0.82, 1.35) | 0.71 |
| ≥75th centile (≥33 years) | 195 | 860 | 1.91 (1.52, 2.42) | <0.001 | 1.70 (1.34, 2.17) | <0.001 |
| Body mass index (kg/m2) | ||||||
| Underweight (<18.5) | 22 | 176 | 0.92 (0.64, 1.32) | 0.64 | 0.96 (0.60, 1.54) | 0.87 |
| Normal (≥18.5 and <25) | 221 | 1845 | 1.00 | 1.00 | ||
| Overweight (≥25 and <30) | 184 | 1047 | 1.47 (1.20, 1.81) | <0.001 | 1.72 (1.38, 2.14) | <0.001 |
| Obese (≥30 and <35) | 84 | 472 | 1.50 (1.15, 1.95) | 0.003 | 2.14 (1.60, 2.86) | <0.001 |
| Morbidly obese (≥35) | 95 | 464 | 1.70 (1.32, 2.20) | <0.001 | 3.16 (2.34, 4.27) | <0.001 |
| Parity | ||||||
| Nulliparous (parity = 0) | 259 | 1739 | 1.00 | 1.00 | ||
| Multiparous (parity 1 to 4) | 321 | 2163 | 1.01 (0.85, 1.19) | 0.96 | 1.00 (0.83, 1.19) | 0.98 |
| Grand multiparity (parity ≥5) | 26 | 102 | 1.73 (1.12, 2.66) | 0.01 | 1.80 (1.13, 2.86) | 0.01 |
| Total | 606 | 4004 | ||||
†The multivariable analyses are adjusted for the other remaining maternal characteristics listed in the table. Nagelkerke R 2 = 0.08.
95% CI: 95% confidence interval.