Table 2 Risk factors for clinical infection (n=840) (Outcome defined as MRSA-positive clinical infection)
Crude odds ratio (95% C.I.) | Adjusted odds ratio (95% C.I.) | p value | |
|---|---|---|---|
Age (years) | |||
≤ 39 | 1.0 (ref) | 1.0 (ref) | - |
40-59 | 1.70 (0.72 – 4.03) | 1.85 (0.78 – 4.40) | 0.163 |
60-79 | 2.59 (1.14 - 5.85) | 2.90 (1.27 – 6.61) | 0.012 |
80 + | 1.75 (0.70 – 4.33) | 2.15 (0.85 – 5.45) | 0.106 |
Gender | |||
Male | 1.0 (ref) | 1.0 (ref) | - |
Female | 0.73 (0.47 – 1.10) | 0.67 (0.43 – 1.03) | 0.066 |
Ethnicity | |||
Chinese | 1.0 (ref) | 1.0 (ref) | - |
Malay | 0.87 (0.52 - 1.47) | 0.93 (0.54 -1.60) | 0.799 |
Indian | 0.97 (0.49 - 1.90) | 1.01 (0.51 – 2.04) | 0.959 |
Other | 0.75 (0.29 - 1.96) | 0.86 (0.32 - 2.31) | 0.772 |
Co-morbidities | |||
Immunosuppression | 0.11 (0.03 - 0.48) | 0.11 (0.03 - 0.44) | 0.002 |