Table 2. Assessment of the relationships between the development of bronchopulmonary dysplasia and clinical and laboratory variables by using multivariate logistic regression analysis.

Variable	Parameter, β	SE	P value
Gestational age (day)	0.066	0.067	0.325
Proteinuric preeclampsia	2.983	2.156	0.167
IVH≥grade 3	-41.333	20,870.805	0.998
TIMP-2 (ng/mL)	-0.063	0.031	0.041

Multivariate logistic regression analysis was conducted after adjusting for sex (male) and birth weight (g).

SE, standard error; IVH, intraventricular hemorrhage; TIMP-2, tissue inhibitor of metalloproteinase-2.