Urinary β2MG level Relative NGAL2 mRNA level r 0.46 p 0.021* Cord blood adiponectin level r -0.258 p 0.06 Cord blood KL-6 level r 0.9 p 0.001*

Table 4: Correlation between urinary beta (2) Microglobulin (β2MG) (mg/L) and neutrophil-gelatinase-associated lipocalin2 (NGAL2) gene expression, adiponectin and KL-6 (U/ml) in BPD group.