Table 3.
Multiple logistic regression with adjusted Odds Ratio on risk factors of MRSA infection
| β coefficient | Adjusted OR | 95 % CI | P | ||
|
|
|||||
| Risk factors | Lower | Upper | |||
| Surgical procedure performed |
1.471 | 4.355 | 1.03 | 18.328 | 0.045 |
| Prolonged hospitalization |
-1.182 | 0.307 | 0.11 | 0.832 | 0.020 |
| Prior Antibiotic use |
-0.709 | 0.492 | 0.20 | 1.204 | 0.120 |
| Presence of open wound |
0.292 | 1.339 | 0.58 | 3.089 | 0.494 |
| Presence of surgical drain |
-0.223 | 0.800 | 0.35 | 1.85 | 0.601 |
| Presence of ET | -2.427 | 0.088 | 0.01 | 1.305 | 0.077 |
| Presence of TT | 1.667 | 5.298 | 1.16 | 24.298 | 0.032 |
| Intravenous lines |
-0.058 | 0.944 | 0.22 | 4.134 | 0.939 |
| Pressure/venous ulcer |
1.975 | 7.205 | 1.75 | 29.606 | 0.006 |
| Recent hospitalization |
1.059 | 2.883 | 1.25 | 6.631 | 0.013 |
| Constant | -2.482 | ||||
|
| |||||
| Odds ratio adjusted to age and gender | |||||
Logistic regression model: log (odds of MRSA) = -2.482 + 1.471 (performing surgery)+ -1.182 (prolonged hospitalization) + 1.667 (presence of tracheostomy tube) + 1.975 (presence of pressure/venous ulcer) + 1.059 (Recent hospitalization)