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Table 2 Demographic and clinical data of newborn infants enrolled into the study

From: Polymorphic variants of SLCO1B1 in neonatal hyperbilirubinemia in China

Data Hyperbilirubinemia group (n = 183) Control group (n = 192) p-value
Gestational age (week) 38.35 ± 1.76 38.12 ± 1.53 0.18
Birth weight (g) 3238.32 ± 409.37 3194.53 ± 399.61 0.29
Sex: male 98 (53.55%) 102 (53.12%) 0.98
Delivery:    
Normal 118 (64.48%) 121 (63.02) 0.85
Cesarean section 45 (24.59%) 49 (25.52%) 0.93
Forceps and vacuum extraction 20 (10.93%) 22 (11.46%) 0.99
Feeding:    
Breast milk only 46 (25.14%) 54 (28.13%) 0.59
Formula mixed with breast milk 94 (51.37%) 97 (50.52%) 0.95
Formula only 43 (23.49%) 41 (21.35%) 0.71
Excessive weight loss (>3% per day or ≥10% of birth weight) 112 (61.2%) 119 (61.98%) 0.96