Table 4.
Risk factors for HA-MRSA colonization in PVL-positive isolates
| Risk factor | % (no.) of patients with: |
OR (95% CI) | P | |
|---|---|---|---|---|
| PVL-positive MRSA | PVL-negative MRSA | |||
| History of MRSA colonization | 20 (6) | 25.9 (432) | 0.72 (0.24–1.82) | 0.47 |
| MRSA detection >48 h after admission | 27.6 (8) | 52.1 (875) | 0.35 (0.13–0.83) | 0.01 |
| Dialysis in the past 12 mo | 13 (3) | 9.0 (119) | 1.51 (0.28–5.21) | 0.46 |
| Surgery in the past 12 mo | 42.9 (9) | 53.7 (740) | 0.65 (0.24–1.68) | 0.32 |
| Hospitalization in the past 12 mo | 50 (11) | 79.3 (1,136) | 0.26 (0.1–0.67) | 0.001 |
| Residence in a nursing home or rehabilitation center in the past 12 mo | 14.3 (3) | 26.8 (332) | 0.45 (0.09–1.57) | 0.32 |