Table 3

Descriptive statistics of variables for MRSA and C. difficile contamination in the general hospital environment
Hospital
A B C
Variables MRSA (n) C. difficile (n) MRSA (n) C. difficile (n) MRSA (n) C. difficile (n)
Visit:
 1 6.5% (3/46) 2.5% (1/40) 6.7% (3/45) 0% (0/39) 0% (0/42) 0% (0/37)
 2 3.7% (2/54) 0% (0/50) 9.1% (5/55) 2.0% (1/49) 53.1% (26/49) 0% (0/44)
 3 8.5% (4/47) 0% (0/44) 22.8% (13/57) 2.0% (1/51) 0% (0/51) 2.2% (1/46)
 4 18.3% (11/60) 8.8% (5/57) 7.0% (4/57) 0% (0/51) 2.0% (1/49) 9.1% (4/44)
Ward:
 Medical 8.2% (11/135) 1.6% (2/126) 9.2% (6/65) 0% (0/57) 14.8% (17/115) 3.9% (4/103)
 Surgical 12.5% (9/72) 6.2% (4/65) 12.8% (19/149) 1.5% (2/133) 13.2% (10/76) 1.5% (1/68)
Surface material:
 Air 6.3% (1/16) na 12.5% (3/24) na 0% (0/20) na
 Fabric 8.6% (3/35) 2.9% (1/35) 21.1% (8/38) 2.6% (1/38) 22.4% (15/67) 3.0% (2/67)
 Laminate 5.3% (1/19) 0% (0/19) 16.7% (2/12) 0% (0/12) 25.0% (3/12) 16.7% (2/12)
 Leather na na na na 0% (0/2) 0% (0/2)
 Metal 9.1% (2/22) 0% (0/22) 14.8% (4/27) 0% (0/27) 10.7% (3/28) 0% (0/28)
 Mixed 11.1% (1/9) 0% (0/9) 30.0% (3/10) 10.0% (1/10) na na
 Plastic 10.7% (11/103) 4.9% (5/103) 5.2% (5/97) 0% (0/97) 11.1% (6/54) 1.9% (1/54)
 Wood 33.3% (1/3) 0% (0/3) 0% (0/6) 0% (0/6) 0% (0/8) 0% (0/8)
Surface location:
 Public access 11.0% (17/155) 2.1% (3/144) 11.9% (19/160) 1.4% (2/148) 12.9% (17/131) 3.3% (4/120)
 Staff access 5.8% (3/52) 6.4% (3/47) 11.1% (6/54) 0% (0/42) 16.7% (10/60) 1.9% (1/52)
Type of surface:
 Antibacterial wipes container 0% (0/6) 0% (0/6) 25.0% (1/4) 0% (0/4) na na
 Blood pressure machine 6.7% (1/15) 0% (0/15) 0% (0/12) 0% (0/12) 12.5% (1/8) 0% (0/8)
 Brochure holder 0% (0/3) 0% (0/3) na na na na
 Bulletin board 0% (0/2) 0% (0/2) 0% (0/2) 0% (0/2) 28.6% (2/7) 0% (0/7)
 Chair back 12.5% (1/8) 0% (0/8) 22.2% (4/18) 0% (0/18) 19.4% (6/31) 0% (0/31)
 Chart holder na na 0% (0/9) 0% (0/9) na na
 Clip board na na na na 12.5% (1/8) 0% (0/8)
 Computer keyboard 8.0% (2/25) 12.0% (3/25) 6.9% (2/29) 0% (0/29) 0% (0/8) 0% (0/8)
 Counter top 0% (0/9) 0% (0/9) 16.7% (2/12) 0% (0/12) 25.0% (2/8)) 12.5% (1/8)
 Door knob 0% (0/3) 0% (0/3) na na 0% (0/6) 0% (0/6)
 Drug cart 19.1% (4/21) 4.8% (1/21) na na 0% (0/8) 0 % (0/8)
 Elevator panel 0% (0/12) 0% (0/12) 0% (0/12) 0% (0/12) 25.0% (2/8) 0% (0/8)
 Glove box holder 33.3% (2/6) 16.7% (1/6) na na na na
 Hand rail 18.8% (3/16) 0% (0/16) 33.3% (4/12) 0% (0/12) 0% (0/8) 0% (0/8)
 Heating oven handle na na na na 14.3% (1/7) 0% (0/7)
 Isolation cart 10.0% (1/10) 0% (0/10) 25.0% (3/12) 8.3% (1/12) 14.3% (1/7) 14.3% (1/7)
 Isolation gown 25.0% (1/4) 0% (0/4) 10.0% (1/10) 0% (0/10) 0% (0/7) 14.3% (1/7)
 Lamp shade na na na na 33.3% (1/3) 0% (0/3)
 Lifter handle na na na na 0% (0/3) 0% (0/3)
 Linen 0% (0/17) 0% (0/17) 0% (0/12) 8.3% (1/12) 23.1% (3/13) 0% (0/13)
 Patient chart 8.3% (1/12) 0% (0/12) 0% (0/21) 0% (0/21) 12.5% (1/8) 12.5% (1/8)
 Sofa 28.6% (2/7) 14.3% (1/7) 57.1% (4/7) 0% (0/7) 27.3% (3/11) 9.1% (1/11)
 Sofa pillow na na na na 33.3% (1/3) 0% (0/3)
 Supply cart na na 8.3% (1/12) 0% (0/12) 25.0% (1/4) 0% (0/4)
 Telephone 6.7% (1/15) 0% (0/15) 0% (0/6) 0% (0/6) na na
 Urine collection container na na na na 20.0% (1/5) 0% (0/5)
 Elevator area – air 12.5% (1/8) na 16.7% (2/12) na 0% (0/8) na
 Nursing station - air 0% (0/5) na 8.3% (1/12) na 0% (0/8) na
 Visiting room - air 0% (0/3) na na na 0% (0/4) na

na = not applicable as these surfaces/areas were not sampled or were not present in the general environment.

Faires et al.

Faires et al. BMC Infectious Diseases 2012 12:290   doi:10.1186/1471-2334-12-290

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