Table 4.
Crude and adjusted ORs for the associations between serum TBA as a categorical variable and SGA infants.
| Parameter | Pregnant women (n) | SGA (n) | Crude OR (95% CI) | Adjusted OR (95% CI) a | Adjusted OR (95% CI) b |
|---|---|---|---|---|---|
| Serum TBA levels (μmol/L) | |||||
| <2.0 | 3196 | 193 | 1.00 | 1.00 | 1.00 |
| 2.0–3.9 | 4580 | 278 | 1.01 (0.83, 1.22) | 1.02 (0.85, 1.24) | 0.99 (0.82, 1.21) |
| 4.0–5.9 | 2075 | 160 | 1.30 (1.05, 1.62)* | 1.31 (1.06, 1.63)* | 1.22 (0.97, 1.53) |
| 6.0–7.9 | 835 | 108 | 2.31 (1.80, 2.97)** | 2.32 (1.81, 2.97)** | 1.99 (1.53, 2.58)** |
| 8.0–9.9 | 434 | 83 | 3.68 (2.78, 4.87)** | 3.64 (2.75, 4.82)** | 2.91 (2.16, 3.93)** |
| 10.0–39.9 | 563 | 138 | 5.05 (3.97, 6.43)** | 5.10 (4.00, 6.49)** | 4.29 (3.33, 5.54)** |
| ≥40.0 | 128 | 50 | 9.98 (6.80, 14.64)** | 9.90 (6.74, 14.55)** | 9.01 (5.99, 13.53)** |
Abbreviation: TBA, total bile acid; SGA, small for gestational age; OR, odds ratio.
aAdjustment for gestational hypertension.
bAdjustment for maternal age, pre-pregnancy BMI, maternal education, parity, gestational diabetes mellitus, gestational hypertension and preeclampsia.
**P < 0.01 as compared with < 2.0 μmol/L group.