Table 5 |
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|
Multivariate logistic regression analysis for death within 1500 days after surgery for patients admitted in both the control and MET periods |
||||
|
Odds ratio |
95% CI |
P value |
VIF |
|
|
|
||||
|
Age (per 10 years) |
1.73 |
1.61–1.86 |
<0.001 |
1.09 |
|
MET perioda |
0.74 |
0.60–0.92 |
0.005 |
1.02 |
|
Female sex |
0.72 |
0.58–0.89 |
0.002 |
1.05 |
|
Nonscheduled surgery |
1.51 |
1.21–1.89 |
<0.001 |
1.18 |
|
Admitting unit |
||||
|
Cardiac surgery |
0.33 |
0.22–0.48 |
<0.001 |
1.28 |
|
Thoracic surgery |
2.76 |
1.89–4.03 |
<0.001 |
1.36 |
|
Orthopaedic surgery |
0.50 |
0.37–0.69 |
<0.001 |
1.43 |
|
Vascular surgery |
0.66 |
0.46–0.94 |
0.023 |
1.20 |
|
Neurosurgery |
1.60 |
1.03–2.48 |
0.036 |
1.63 |
|
Liver transplant unit |
0.30 |
0.09–1.03 |
0.056 |
1.05 |
|
Oncology |
10.48 |
1.2–91.65 |
0.034 |
1.01 |
|
General medicine |
3.00 |
1.13–7.95 |
0.027 |
1.02 |
|
Procedure |
||||
|
Bronchoscopy |
3.13 |
1.24–7.88 |
0.015 |
1.16 |
|
Breast surgery |
0.20 |
0.04–0.95 |
0.043 |
1.04 |
|
Spinal fusion |
0.34 |
0.17–0.68 |
0.002 |
1.21 |
|
Cerebral resection |
3.30 |
1.6–6.77 |
0.001 |
1.33 |
|
Cystoscopy ± bladder tumour resection |
2.90 |
1.04–8.08 |
0.042 |
1.02 |
|
|
||||
|
The characteristics of the operation clusters are outlined in Table 1. For this model, the Hosmer-Lemeshow goodness-of-fit statistic was 13.1 (P = 0.11). The percentage of appropriately classified patients in the final model is 75.3%. aThe OR and 95% CI for introduction of the MET pertains to that derived from the multivariate model. CI, confidence interval; OR, odds ratio; VIF, variance inflation factor. |
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|
Jones et al. Critical Care 2007 11:R12 doi:10.1186/cc5673 |
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