Table 1 Incidence of pneumonia after cardiac surgery
Times | Rate of infection | Â | Component ratio | ||
|---|---|---|---|---|---|
Number of discharges | Infection rate n (%) | Â | General infection | Component ratio (%) | |
2021 | 2162 | 127 (5.87) | Â | 162 | 127(78.39) |
2022 | 2287 | 135 (5.90) | Â | 165 | 135(81.82) |
2023 | 2632 | 105 (3.99) | Â | 140 | 105(75.00) |
χ2 | 12.145 |  | 2.098 | ||
P-value | 0.002 | Â | 0.350 | ||