Multivariable-adjusted odds ratio of developing mild and severe ROP for various factors in polytomous logistic analysis.

<p>Abbreviations: SGA, small for gestational age; RDS, respiratory distress syndrome with surfactant treatment; PDA, patent ductus arteriosus.</p><p>Multivariable-adjusted odds ratio of developing mild and severe ROP for various factors in polytomous logistic analysis.</p

Multivariable-adjusted odds ratios of developing ROP (all grades) for various factors.

<p>Abbreviations: SGA, small for gestational age; RDS, respiratory distress syndrome with surfactant treatment; PDA, patent ductus arteriosus.</p><p>Multivariable-adjusted odds ratios of developing ROP (all grades) for various factors.</p

Multivariable-adjusted odds ratios of developing ROP in stratified analysis according to SGA status.

<p>Abbreviations: SGA, small for gestational age; RDS, respiratory distress syndrome with surfactant treatment; PDA, patent ductus arteriosus.</p><p>Multivariable-adjusted odds ratios of developing ROP in stratified analysis according to SGA status.</p