Volume 9, Number 2—February 2003
Research
Health and Economic Impact of Surgical Site Infections Diagnosed after Hospital Discharge
Eli N. Perencevich*†
, Kenneth E. Sands*†, Sara E. Cosgrove*, Edward Guadagnoli‡, Ellen Meara‡, and Richard Platt§†‡
, Kenneth E. Sands*†, Sara E. Cosgrove*, Edward Guadagnoli‡, Ellen Meara‡, and Richard Platt§†‡Table 5
Results of five separate matched linear regression models with log-transformed total costs as the outcome variable, surgical sites infection (SSI) study
| Model no. | Predictor variable | β parameter estimate | Standard error | p value | R2 |
|---|---|---|---|---|---|
| 1 |
SSI (case) |
1.30 |
0.21 |
<0.001 |
0.492 |
| 2 |
Chronic disease score |
0.00018 |
0.00006 |
0.002 |
0.095 |
| 3 |
SSI (case) |
1.20 |
0.21 |
<0.001 |
0.507 |
| Chronic disease score |
0.00012 |
0.00005 |
0.03 |
||
| 4 |
SSI (case) |
1.27 |
0.22 |
<0.001 |
0.499 |
| Index surgery duration |
0.0017 |
0.0017 |
0.3 |
||
| 5 | SSI (case) |
1.17 |
0.22 |
<0.001 |
0.514 |
| Chronic disease score |
0.0001 |
0.00005 |
0.02 |
||
| Index surgery duration | 0.0018 | 0.0017 | 0.3 |
