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Comparison of serum NT-proBNP and MMP-9 levels in patients with different cardiac functions (x±s).
| Different cardiac functions | NT-proBNP (pg/ml) | MMP-9 (µg/l) |
|---|---|---|
| Cardiac function in class II and below | 156.8±25.1a | 2.02±0.06a |
| Cardiac function in class III and above | 458.9±56.3 | 4.11±0.12 |
| t | 30.996 | 98.524 |
| P-value | <0.001 | <0.001 |
P<0.05, compared with patients with heart function grade III and above. NT-proBNP, N-terminal pro-brain natriuretic peptide; MMP-9, matrix metalloproteinase-9.
