Table 4.
Case and control matching.
| Case | Control | |
|---|---|---|
| Parity (mod) | 2 | 2 |
| BMI | 21/15 kg/m2 | 21/05 kg/m2 |
| Maternal age | 33/6 | 32/1 |
| Gestational age | 23/2 w | 22/8 w |
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