TABLE 4.
Geometric means and 95% confidence intervals (CI), medians, and percentage of elevated values of C-reactive protein (CRP, mg/l) by gestational age after excluding women with stillbirth, preterm, BMI >30 kg/m2 at enrollment, hypertension, or anemia during pregnancy
| Gestational age (weeks) | n | Geometric meana (95% CI) | Median | % > 5.0 mg/l |
|---|---|---|---|---|
| Measurement period 1 | ||||
| 6 | 85 | 0.82 (0.62, 1.07) | 0.70 | 7.1 |
| 8 | 104 | 1.00 (0.78, 1.27) | 0.81 | 10.6 |
| 10 | 80 | 1.41 (1.12, 1.78) | 1.69 | 8.6 |
| 12 | 67 | 2.05 (1.62, 2.59) | 2.03 | 20.9 |
| 14 | 85 | 1.87 (1.46, 2.41) | 1.85 | 20.0 |
| 16 | 72 | 2.34 (1.76, 3.11) | 2.50 | 30.6 |
| 18 | 72 | 2.21 (1.70, 2.88) | 2.30 | 30.1 |
| 20 | 59 | 2.81 (2.11, 3.74) | 2.93 | 37.3 |
| Measurement period 2 | ||||
| 28 | 189 | 3.09 (2.70, 3.54) | 2.86 | 31.2 |
| 29 | 160 | 3.54 (3.05, 4.11) | 3.91 | 36.9 |
| 30 | 119 | 3.45 (2.87, 4.14) | 3.41 | 39.5 |
| 31 | 89 | 3.55 (2.94, 4.30) | 3.86 | 39.3 |
| 32 | 67 | 4.06 (3.27, 5.04) | 4.04 | 38.8 |
a
Linear regression for trend tests, P < 0.0001.