Clinical characteristics | RM (mean ± SD) | NP (mean ± SD) | P value |
---|---|---|---|
Age (years) | 29.9 ± 0.84 | 28.0 ± 0.92 | 0.208 |
Gestational week | 8.70 ± 0.32 | 8.13 ± 0.15 | 0.113 |
Pregnant history | 3.06 ± 1.75 | 3.00 ± 1.83 | 0.922 |
Childbearing history | 0.05 ± 0.24 | 0.83 ± 0.85 | 0.001 |
Miscarriage history | 2.94 ± 1.78 | 0.00 ± 0.00 | 0.000 |