Table 5 Information on fetal gender and maternal age in different gestational week groups
Gestational week (week) | n | Gender (female/male) | P-value | Maternal age (year), median | P-value |
|---|---|---|---|---|---|
17 ~ 18 | 12 | 5/7 | 0.522 | 28.5(24 ~ 42) | 0.812 |
19 ~ 20 | 67 | 39/28 | 31(21 ~ 42) | ||
21 ~ 22 | 30 | 18/12 | 31(24 ~ 42) |