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| Parameter | No Infection (N = 5805) | Any Infection (N = 3530) | p |
| Age (avg±stdev) | 75±10 | 77±10 | <0.0001 |
| Male (%) | 57 | 55 | NS |
| Diabetes (%) | 41 | 44 | 0.004 |
| CRF (%) | 30 | 45 | <0.0001 |
| Malignancy (%) | 14 | 16 | NS |
| AFIB (%) | 38 | 47 | <0.0001 |
| Obesity (%) | 11 | 13 | 0.007 |
| IHD (%) | 67 | 69 | NS |
| Past CVA (%) | 13 | 20 | <0.0001 |
| COPD (%) | 13 | 31 | <0.0001 |
