(A) Proportional hazards model of meticillin-resistant Staphylococcus aureus (MRSA) infection taken from the time of entering the study to either MRSA infection or 9 August 2009, whichever occurred first, and (B) logistic regression model of mortality associated with prior MRSA carriage
| Risk factor | (A) MRSA infection | (B) Mortality | ||
| HR (95% CI) | p Value | OR (95% CI) | p Value | |
| MRSA colonisation during study | 2.51 (1.2 to 5.24) | 0.014 | 1.16 (0.95 to 1.41) | 0.132 |
| Age | 1.00 (0.96 to 1.05) | 0.728 | 1.04 (1.03 to 1.05) | <0.001 |
| Male | 1.41 (0.65 to 3.08) | 0.377 | 1.39 (1.14 to 1.69) | 0.001 |
| Presence of an invasive device | 0.67 (0.09 to 5.02) | 0.701 | 5.45 (3.32 to 8.95) | <0.001 |
| No. of hospital admissions in the previous 12 months | 1.11 (0.92 to 1.34) | 0.244 | 1.06 (1.00 to 1.12) | 0.038 |