| Group I with AF | Group II with AF | P value |
NT proBNP (T1) | 30.29 | 21.35 | 0.070 |
NT proBNP (T2) | 35.34 | 24.92 | 0.027 |
NT proBNP (T3) | 37.17 | 28 | 0.034 |
NT proBNP (T4) | 40 | 31.48 | 0.036 |