NPPB and COVID-19: In comparison to COVID-19 patients who were discharged alive, those who died had significantly higher serum levels of WBCs (12.6 ± 5.9 vs 9.7 ± 4.7 × 109/L, p = 0.03), NLR (23.6 ± 14.8 vs 7.0 ± 6.6, p <0.001) and NT-proBNP (2915.7 ± 4356.6 vs 1120.6 ± 2553.0 pg/ml, p = 0.03) and significantly impaired renal function (eGFR 48.0 ± 34.9 vs 69.6 ± 27.0 ml/min/m2, p = 0.006).