Table 1
Characteristics of preterm infants
Responders
Non-responders
p Value
Number of patients
156
20
Male/female
76/80
12/8
NS
Gestational age (weeks)
Mean
31.9 (2.1)
31.4 (2.5)
NS
Range
24–35
23–34
NS
Birthweight (kg)
1.56 (0.4)
1.53 (0.5)
NS