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. 2012 Jul 25;27(8):914–921. doi: 10.3346/jkms.2012.27.8.914

Table 2.

Clinical outcomes and therapies employed according to the severity of bronchopulmonary dysplasia

graphic file with name jkms-27-914-i002.jpg

P is for score test for trend (Jonckheere-Terpstra test for continuous variables and linear by linear association for categorical variables). The severity of bronchopulmonary dysplasia was defined according to the NICHD consensus definition (8). BPD, bronchopulmonary dysplasia; IVH, intraventricular hemorrhage; NEC, necrotizing enterocolitis; ROP, retinopathy of prematurity; PVL, periventricular leukomalacia.