Demographic and Clinical Characteristics Used for Risk Estimates by Quartile of Baseline Risk for Grades 2 to 3 BPD or Death
BPD, death
BRONCHOPULMONARY DYSPLASIA
Abbreviations: BPD, bronchopulmonary dysplasia; FIn the primary analysis for heterogeneity of treatment effect in the efficacy outcome of grades 2 to 3 BPD or death, there was no significant interaction between baseline risk for grades 2 to 3 BPD or death and treatment on a relative or absolute scale (