Table 2 Baseline characteristics of the study population by pre-pregnancy systolic blood pressure
From: Pre-pregnancy blood pressure and pregnancy outcomes: a nationwide population-based study
Characteristics | < 130 (n = 357,761) | 130 – 139 (n = 17,544) | P-value |
|---|---|---|---|
Age, years (n) | 30.7 ± 3.6 | 31.0 ± 4.0 | <.0001 |
Primiparity | 241,842 (67.6) | 11,920 (67.9) | 0.3408 |
Pre-pregnancy anthropometric measurements (n) | |||
Body mass index (kg/m2) | 20.9 ± 2.7 | 22.7 ± 3.9 | <.0001 |
Obesity (BMI ≥ 25) | 27,300 (7.6) | 4145 (23.6) | <.0001 |
Systolic blood pressure (mmHg) | 108.6 ± 9.3 | 131.9 ± 2.7 | <.0001 |
Diastolic blood pressure (mmHg) | 68.4 ± 7.4 | 79.3 ± 5.5 | <.0001 |
Pre-pregnancy comorbidities | |||
Diabetes | 14,368 (4.0) | 761 (4.3) | <.05 |
Dyslipidemia (Cholesterol ≥240) | 8680 (2.4) | 792 (4.5) | <.0001 |
Current smoker before pregnancy | 10,021 (2.8) | 745 (4.3) | <.0001 |
Pre-pregnancy laboratory findings | |||
AST | 19.1 ± 9.6 | 20.2 ± 9.3 | <.0001 |
ALT | 15.1 ± 14.7 | 17.7 ± 15.6 | <.0001 |
High LFT (AST or ALT ≥80) | 1626 (0.5) | 172 (1.0) | <.0001 |
Cholesterol | 175.2 ± 29.6 | 182.2 ± 36.7 | <.0001 |