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Table 1 Prenatal, perinatal, and infant characteristics of cases and control subjects

From: Anesthesia, sex and miscarriage history may influence the association between cesarean delivery and autism spectrum disorder

Variables ASD
(N = 950)
Control
(N = 764)
P
Maternal and prenatal characteristics, N (%)
 Mother’s age at birth (Years) 28.0 (25.9, 30.0) 28.0 (25.0, 30.3) 0.812
 Parity number 1 (1.2) 1 (1.2) <0.001
 Gravity number 1 (1.1) 1 (1.1) 0.828
 Past miscarriage history 315 (34.4) 119 (18.1) <0.001
 Threatened abortion 127 (13.6) 79 (10.6) 0.072
Labor and perinatal characteristics, N (%)
 Cesarean section, Infant characteristics 491 (51.7) 301 (39.4) <0.001
 Infant’s weight at birth (kg), Median (IQR) 3.5 (3.2,3.9) 3.4 (3.1,3.8) 0.001
  1. Bold values are statistically significant associations (p-value < 0.05)
  2. ASD Autism spectrum disorder
  3. Values are presented as median (IQR [interquartile range])