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Table 2 Risk factors for clinical infection (n=840) (Outcome defined as MRSA-positive clinical infection)

From: Progression from new methicillin-resistant Staphylococcus aureus colonisation to infection: an observational study in a hospital cohort

  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
  1. Bolded entries are significant at p < 0.05.