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Comparison of baseline date of both groups.
| Group | Infection group (N=512) | Non-infection group (N=386) | t/χ2 | P |
|---|---|---|---|---|
| Age | 65.1±1.92 | 64.83±3.16 | 1.584 | 0.114 |
| Male (n, %) | 307 (60) | 231 (60) | 0.001 | 0.972 |
| Female (n, %) | 205(40) | 155(40) | ||
| Concomitant disease (n, %) | 117 (22.9) | 90 (23.3) | 0.027 | 0.870 |
