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Table 6 Univariable regression analyses of variables associated with MRSA or C. difficile contamination in the ward environment

From: The identification and epidemiology of meticillin-resistant Staphylococcus aureus and Clostridium difficile in patient rooms and the ward environment

Variable

Description

OR

P-value

Overall P-value for the variable

Dependent variable: surface contaminated with MRSA

    

Visit

1

Referent

 

0.390

 

2

0.42

0.628

 
 

3

0.35

0.617

 
 

4

0.31

0.361

 
 

5

0.26a

0.242

 
 

6

0.37a

0.267

 

Ward

Medicine A

Referent

 

0.185

 

Medicine B

0.26

0.368

 
 

Surgery

0.18

0.165

 

Surface material

Plastic

Referent

 

0.099

 

Fabric

1.33

0.999

 
 

Laminate

7.53

0.078

 
 

Rubber

2.51a

0.999

 
 

Wood

1.85a

0.999

 

Location

Hallway

Referent

 

0.492

 

Visiting Room

0.97

0.999

 
 

Work area

0.27

0.372

 

Surface sampled

Computer keyboard

Referent

 

0.176

 

Chair

2.03

0.999

 
 

Clean towels

1.77

0.999

 
 

Counter top

7.96

0.114

 
 

Drug cart

3.24a

0.999

 
 

Heating oven handles

3.24a

0.999

 
 

Otherb

1.19

0.999

 

Dependent variable: surface contaminated with C. difficile

    

Visit

1

Referent

 

0.439

 

2

0.31

0.380

 
 

3

0.52

0.677

 
 

4

1.25

0.999

 
 

5

0.25

0.361

 
 

6

0.35

0.404

 

Ward

Medicine A

Referent

 

0.609

 

Medicine B

0.52

0.496

 
 

Surgery

0.59

0.531

 

Surface material

Plastic

Referent

 

0.936

 

Fabric

0.94

0.999

 
 

Laminate

0.69a

0.593

 
 

Rubber

0.86

0.999

 
 

Wood

0.63

0.999

 

Location

Hallway

Referent

 

0.999

 

Visiting Room

1.32

0.999

 
 

Work area

1.11

0.999

 

Surface sampled

Computer keyboard

Referent

 

0.434

 

Chair

1.36

0.999

 
 

Clean towels

0.58

0.999

 
 

Counter top

0.93a

0.593

 
 

Drug cart

1.08

0.999

 
 

Heating oven handles

3.63

0.139

 
 

Otherb

0.79

0.999

 
  1. a Median unbiased estimates.
  2. b Clean linen, glove box holder, hand rail, patient charts.