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| Characteristics | Control (n = 30) | RSA (n = 30) | P value |
|---|---|---|---|
| Age (years) | 30.3 ± 1.8 | 30.8 ± 2.2 | NS |
| Gestational age (weeks) | 11.9 ± 2.1 | 12.6 ± 2.6 | NS |
| Smoking | none | none | NS |
| Pregnancy time (weeks) | 10.8 ± 1.2 | 11.2 ± 1.9 | NS |
| Median maternal weight (kg) | 52.8 ± 4.5 | 53.4 ± 5.3 | NS |
| Median maternal BMI (kg/m2) | 22.3 ± 2.5 | 21.6 ± 1.9 | NS |
