NPPB and anemia: Other independent risk factors included the level of NT-proBNP (OR 8.260, 95% CI 3.168–21.533, P < 0.001), TNT (OR 8.118, 95% CI 3.205–20.562, P < 0.001), and anemia (OR 0.954, 95% CI 0.931–0.978, P < 0.001).