Table 3

Risk of ROP among premature infants with gestational age ≤32 weeks and birth weight ≤1500 g (n=235)

 ExaminedInfants with ROPp Value*
 CountCount%
Overall2352711.5
Gender0.383
 Male123129.8
 Female1121513.4
Supplemental oxygen0.014
 Yes1962713.8
 No390.0
Surfactant<0.001
 Yes671928.4
 No16884.8
Septicaemia<0.003
 Yes721520.8
 No163127.4
Birth apnoea<0.001
 Yes491326.5
 No186147.5
Blood transfusions<0.001
 Yes752128.0
 No16063.8
Phototherapy0.135
 Yes1722313.4
 No6346.3
Respiratory distress syndrome0.006
 Yes25728.0
 No210209.5
  • *p Values are for χ2 test (or Fisher's exact test when necessary).

  • ROP, retinopathy of prematurity.