Skip to main content

Table 2 Comparison of pregnancy-related risk factors

From: Cross sectional study in China: fetal gender has adverse perinatal outcomes in mainland China

  Male infants (n = 60028) Female infants (n = 49694) Ratio P
n (%) n (%)
GDM 2778 (4.6%) 2254 (4.5%) 1.23 0.47
DM 67 (1.1‰) 65 (1.3‰) 1.03 0.36
HDCP 2593 (4.3%) 2217 (4.5%) 1.17 0.25
Preeclampsia, eclampsia 1777 (3.0%) 1549 (3.1%) 1.15 0.13
PROM 9096 (15.2%) 7509 (15.1%) 1.21 0.85
Placenta previa 742 (1.2%) 586 (1.2%) 1.27 0.39
Placenta abruption 311 (0.5%) 264 (0.5%) 1.18 0.76
Oligohydramnios 2286 (3.8%) 1891 (3.8%) 1.21 0.98
FGR 3190 (5.4%) 3918 (8.0%) 0.81 <0.001
Malpresentation 2134 (3.6%) 2145 (4.3%) 0.99 <0.001
NRFHT 4944 (8.2%) 4139 (8.3%) 1.19 0.58
  1. GDM, gestational diabetes mellitus; HDCP, hypertension disorder complicating pregnancy; DM, preexisting diabetes mellitus; PROM, premature rupture of membranes; Malpresentation, including breech presentation, face presentation, transverse lie, and unstable lie; FGR, Fetal Growth Restriction; NRFHT, non-reassuring fetal heart rate Tracing. 1744 missing cases for neonatal weight.