NPPB and atrial fibrillation: In univariable Cox regression analysis (Table 5), age (HR = 1.026; 95% CI: 1.011–1.042; p = 0.001), AF (HR = 1.452; 95% CI: 1.018–2.207; p = 0.040), oral anticoagulant use (HR = 2.029; 95% CI: 1.357–3.034; p = 0.001), NT-proBNP (HR = 1.001; 95% CI: 1.001–1.002; p = 0.007), and creatinine (HR = 1.141; 95% CI: 1.005–1.294; p = 0.041) were identified as significant predictors.