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Table 1 Clinical characteristics of newborn infants studied to perform hour-specific nomogram.

From: Development and validation of serum bilirubin nomogram to predict the absence of risk for severe hyperbilirubinaemia before discharge: a prospective, multicenter study

Variables Neonates (1708)
Gestational age (wks)  
37 234 (13.7)
38 325 (19.0)
39 364 (21.3)
40 453 (26.5)
41 284 (16.6)
42 48 (2.8)
Birth weight (g)  
≤3000 350 (20.5)
3001-3499 697 (40.8)
3501-3999 521 (30.5)
≥ 4000 140 (8.2)
Male/Female 943/765 (55.2/44.8)
Mode of delivery  
Vaginal 1085 (63.5)
Cesarean section 542 (31.7)
Vacuum extractor 81 (4.8)
Feeding  
Exclusive breast feeding 1304 (76.3)
Breast + bottle feeding 143 (8.4)
Bottle feeding 261 (15.3)
  1. Values expressed as number (%)