Table 4.
Univariable regression analyses of variables associated with MRSA or C. difficile contamination in patient rooms
| Variable | Description | OR | P-value | Overall P-value for the variable |
|---|---|---|---|---|
|
Dependent variable: surface contaminated with MRSA |
|
|
|
|
| Ward |
Medicine A |
Referent |
|
0.614 |
| |
Medicine B |
0.38 |
0.648 |
|
| |
Surgery |
0.44 |
0.423 |
|
| Type of patient room |
Unexposed |
Referent |
|
0.594 |
| |
MRSA exposed |
0.47 |
0.679 |
|
| |
C. difficile exposed |
1.06a |
0.634 |
|
| Surface material |
Plastic |
Referent |
|
0.776 |
| |
Cork |
0.49a |
0.346 |
|
| |
Fabric |
0.61 |
0.999 |
|
| |
Laminate |
0.57 |
0.693 |
|
| Surface sampled |
End of bed |
Referent |
|
0.111 |
| |
Bulletin board |
1.18a |
0.999 |
|
| |
Chair back |
4.39 |
0.200 |
|
| |
Overbed table |
1.03 |
0.999 |
|
| |
Privacy curtain |
1.08 |
0.999 |
|
| |
Television |
1.15a |
0.999 |
|
|
Dependent variable: surface contaminated with C. difficile |
|
|
|
|
| Ward |
Medicine A |
Referent |
|
0.884 |
| |
Medicine B |
0.76 |
0.744 |
|
| |
Surgery |
0.73 |
0.758 |
|
| Type of patient room |
Unexposed |
Referent |
|
0.008 |
| |
MRSA exposed |
0.31 |
0.301 |
|
| |
C. difficile exposed |
4.71 |
0.031 |
|
| Surface material |
Plastic |
Referent |
|
0.017 |
| |
Cork |
3.84 |
0.030 |
|
| |
Fabric |
0.36 |
0.336 |
|
| |
Laminate |
0.97 |
0.999 |
|
| Surface sampled |
End of bed |
Referent |
|
0.059 |
| |
Bulletin board |
4.03 |
0.131 |
|
| |
Chair back |
1.03 |
0.999 |
|
| |
Overbed table |
1.03 |
0.999 |
|
| |
Privacy curtain |
0.44a |
0.494 |
|
| Television | 1.15 | 0.999 |
OR = odds ratio.
a Median unbiased estimates.