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Table 6 Univariable logistic regression analysis of variables associated with MRSA contamination

From: A prospective study to examine the epidemiology of methicillin-resistant Staphylococcus aureus and Clostridium difficile contamination in the general environment of three community hospitals in southern Ontario, Canada

Variable Description OR 95% CI P-value
Hospital A Referent   
  B 1.23 0.66-2.30 0.503
  C 1.54 0.83-2.85 0.169
Ward Medicine Referent   
  Surgery 1.21 0.74-1.98 0.443
Surface material Plastic Referent   
  Air 0.75 0.25-2.27 0.615
  Fabric 2.41 1.31-4.43 0.005
  Laminate 1.71 0.65-4.50 0.277
  Metal 1.38 0.61-3.13 0.446
  Othera 1.65 0.58-4.66 0.346
Surface location Public access Referent   
  Staff access 0.96 0.55-1.67 0.881
Type of surface Computer keyboard Referent   
  Blood pressure machine 0.88 0.15-5.06 0.885
  Chair back 3.47 1.04-11.60 0.044
  Counter top 2.32 0.54-10.02 0.260
  Drug cart 2.32 0.54-10.02 0.260
  Elevator areab 1.74 0.36-8.35 0.489
  Elevator panel 0.97 0.17-5.58 0.970
  Hand rail 3.50 0.95-12.93 0.060
  Isolation cart 3.02 0.75-12.23 0.121
  Isolation gown 1.53 0.26-9.00 0.640
  Linen 1.12 0.24-5.26 0.890
  Nursing stationb 0.60 0.06-5.69 0.660
  Otherc 1.96 0.58-6.57 0.276
  Patient chart 0.74 0.13-4.26 0.739
  Sofa 8.16 2.22-29.97 0.002
  Supply cart 2.07 0.34-12.47 0.426
  Telephone 0.73 0.08-6.87 0.779
C. difficile Negative Referent   
  Positive 2.19 0.59-8.16 0.244
  1. a Includes: leather (n=2), mixed (n=19), and wood (n=17).
  2. b Air samples.
  3. c Surfaces include: antibacterial wipes container (n=10), brochure holder (n=3), bulletin board (n=11), chart holder (n=9), clip board (n=8), door knob (n=9), glove box holder (n=6), heating oven handle (n=7), lamp shade (n=3), lifter handle (n=3), sofa pillow (n=3), urine collection container (n=5), visiting room – air (n=3).