Table 1 The pre-pregnancy and pregnancy characteristics of participants stratified by the number of pregnancies
From: Women with multiple gestations have an increased risk of development of hypertension in the future
|  | Singleton (n = 357,877) | Multiple gestations (n = 4,944) | P-value |
|---|---|---|---|
Age (years) | 29.95 ± 3.27 | 30.02 ± 3.38 |  < 0.01 |
Advanced maternal age (%) | 30,899 (8.63) | 685 (13.86) |  < 0.01 |
Primiparity (%) | 214,451 (59.92) | 3,893 (78.74) |  < 0.01 |
Preeclampsia (%) | 5919 (1.65) | 374 (7.56) |  < 0.01 |
Atrial fibrillation (%) | 176 (0.05) | 3 (0.06) | 0.72 |
Regular exercise (%) | 27,520 (7.69) | 420 (8.50) | 0.04 |
Smoker (%) | 9,859 (2.75) | 108 (2.18) | 0.01 |
BMI (kg/m2) | 20.75 ± 5.81 | 20.85 ± 2.71 | 0.23 |
Obesity (%) | 23,335 (6.52) | 371 (7.50) |  < 0.01 |
Systolic BP (mmHg) | 110.4 ± 10.54 | 110.6 ± 10.77 | 0.08 |
Diastolic BP (mmHg) | 69.52 ± 7.86 | 69.60 ± 7.94 | 0.50 |
Fasting glucose (mg/dL) | 85.93 ± 14.42 | 86.34 ± 12.87 | 0.04 |
DM (%) | 3,324 (0.93) | 71 (1.44) |  < 0.01 |
TC (mg/dL) | 174.0 ± 34.56 | 175.1 ± 35.20 | 0.03 |
High TC (%) | 63,302 (17.69) | 923 (18.67) | 0.07 |
AST (mg/dL) | 19.53 ± 11.38 | 19.89 ± 10.70 | 0.03 |
ALT (mg/dL) | 15.41 ± 15.48 | 15.81 ± 14.27 | 0.07 |
Abnormal LFT (%) | 13,531 (3.78) | 205 (4.15) | 0.18 |