Table 2.
Triplet pregnancies with and without GDM, defined as an abnormal 75 g, 2-h oGTT.
| Abnormal oGTT (n = 19) | Normal oGTT (n = 41) | OR (95% CI) | p (LR test) | ||
|---|---|---|---|---|---|
| Age (years) | 32 (28;36) | 32 (27;35) | 0.988 (0.900;1.086) | 0.805 | |
| BMI (kg/m2) | 23.5 (22.7;27.3) | 23.7 (22.3;26.1) | 1.033 (0.885;1.206) | 0.677 | |
| Parity | 0 | 15 (78.9) | 29 (70.7) | ||
| 1 | 4 (21.1) | 8 (19.51) | |||
| 2 | 0 | 4 | |||
| Pregnancy after IVF | 13 (68.4) | 25 (61.0) | 1.950 (0.536;7.088) | 0.306 | |
| Pregnancy after ovarian stimulation | 1 (3.1) | 4 (10.0) | 0.563 (0.058;5.440) | 0.615 | |
| Smoking during pregnancy | 5 (23.8) | 3 (7.3) | 4.524 (0.953;21.464) | 0.057 | |
| Pregnancy induced/preexisting hypertension | 1 (5.3) | 4 (9.8) | 0.558 | ||
| Gestational age at delivery (completed weeks) | 33.0 (31.7;34.0) | 33.1 (31.4;34.0) | 1.014 (0.978;1.051) | 0.457 | |
| Median birthweight (g) | 1691 (1517;1893) | 1673 (1299;1933) | 1.001 (0.999;1.002) | 0.43 | |
| Median birth weight (percentile) | 33.8 (14.4;62.2) | 43.1 (24.5;69.2) | 0.990 (0.978;1.002) | 0.098 | |
| 75 g oGTT: fasting glucose level (mmol/L) | 5.16 (4.66;5.66) | 4.55 (4.27;4.72) | 1.136 (1.044;1.237) | 0.003 | |
| 75 g oGTT: 1-h glucose level (mmol/L) | 10.55 (9.66;11.60) | 7.88 (7.10;8.82) | 1.075 (1.034;1.118) | <0.001 | |
| 75 g oGTT: 2-h glucose level (mmol/L) | 8.56 (6.55;10.27) | 6.16 (5.44;7.16) | 1.049 (1.022;1.077) | <0.001 | |
Significant p-values are provided in italics; Abbreviations used: BMI, body mass index; oGTT, oral glucose tolerance test.