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Table 6 Multivariate analysis of risk factors for MRSA pneumonia

From: Prediction of methicillin-resistant Staphylococcus aureusin patients with non-nosocomial pneumonia

Risk factors Odds ratio 95% CI P-value
Age 1.02 0.99-1.04 0.135
Hospitalization for ≥ 2 days in the preceding 90 days 1.77 0.99-3.15 0.053
Residence in a nursing home or extended care facility 1.50 0.71-3.17 0.287
Intravenous antibiotic treatment within 30 days 2.23 1.15-4.32 0.018
Tube feeding 0.85 0.39-2.15 0.853
Hypoxemiaa 1.12 0.66-1.91 0.671
Single infiltrate 0.55 0.33-0.94 0.029
MRSA history in the previous 1 year 6.05 2.99-12.22 <0.001
PSI score ≥ 120 2.40 1.18-4.86 0.015
  1. aPaO2 < 60 mmHg, SpO2 < 90%, or need for oxygen therapy.
  2. Abbreviations: MRSA methicillin-resistant Staphylococcus aureus, PSI pneumonia severity index, CI confidence interval.