Table 3

Neonatal characteristics	OR	95%CI
Preterm birth (<37 weeks)^a	1.58	1.48-1.69
Low birth weight (<2500g)^a	1.61	1.49-1.74
Small for gestational age^a	1.30	1.19-1.43
Low Apgar score (<7 at 5 minutes)^a	1.29	1.11-1.50
Cerebral hemorrhage	3.35	2.48-4.53
Neonatal convulsions	1.39	1.02-1.80
Respiratory problems	2.51	2.37-2.65
Mechanical ventilation	2.72	2.18-3.40
Use of CPAP	3.38	3.03-3.76
Neonatal sepsis	1.48	1.12-1.78
Congenital malformations^b	1.44	1.32-1.57

^aOnly singletons
^bRestricted to relatively severe malformations
CPAP = continuous positive airway pressure

Table 3: Some neonatal characteristics of infants conceived by IVF [13].