Table 3.
Clinical features of gestational diabetes mellitus (GDM) and non-GDM cases in the first trimester
| Characteristic | 2017 training group | P | 2018 testing group | P | ||
|---|---|---|---|---|---|---|
| GDM cases | Controls | GDM cases | Controls | |||
| n = 2696 | n = 14 123 | n = 2216 | n = 13 155 | |||
| n (%) | n (%) | n (%) | n (%) | |||
| SBP, mm Hg, median (IQR) | 114 (10-122) | 110 (102-117) | < .001 | 115 (106-124) | 110 (102-117) | < .001 |
| DBP, mm Hg, median (IQR) | 71 (65-77) | 68 (62-73) | < .001 | 71 (64-79) | 68 (62-74) | < .001 |
| PCOS | 13 (0.5) | 30 (0.2) | .02 | 30 (1.4) | 65 (0.5) | < .001 |
| Personal history of GDM | 132 (4.9) | 44 (0.3) | < .001 | 94 (4.2) | 44 (0.3) | < .001 |
| Natural pregnancy | 2180 (80.9) | 12 324 (87.3) | < .001 | 1796 (81.0) | 11 462 (87.1) | < .001 |
| Multiple pregnancy | 110 (4.1) | 379 (2.7) | < .001 | 80 (3.6) | 386 (2.9) | < .001 |
| Multipara | 1053 (39.1) | 4486 (31.8) | < .001 | 825 (37.2) | 4008 (30.5) | < .001 |
Abbreviations: DBP, diastolic blood pressure; GDM, gestational diabetes mellitus; IQR, interquartile range; PCOS, polycystic ovary syndrome; SBP, systolic blood pressure.