NPPB and bronchopulmonary dysplasia: Likewise, the NT-proBNP concentrations were significantly higher in the BPD group than in the control group from DOL 7 (16.40 ± 2.19 vs. 14.57 ± 1.10 ng/mg Cr, P < 0.001; Figure 1B and Supplementary Table 1) to DOL 28 (12.50 ± 1.55 vs. 8.72 ± 1.37 ng/mg Cr, P < 0.001; Figure 1B and Supplementary Table 1).