Table 4.
Summary results of multilevel analysis: mediation effect examination (random sampling 1:4 case-control)
| Model 1 (y=mortality) | Model 2 (y=patterns of QOC) | Model 3 (y=mortality) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Odds ratio | 95% C.I. | Odds ratio | 95% C.I. | Odds ratio | 95% C.I. | ||||
| LCL | UCL | LCL | UCL | LCL | UCL | ||||
| Fixed-effects | |||||||||
| Income (ref. = low income) | 0.392** | 0.176 | 0.876 | 2.562* | 1.099 | 5.973 | 0.420* | 0.190 | 0.933 |
| Patterns of QOC (ref. = excellent) | 6.277** | 1.147 | 34.354 | ||||||
*p<0.05 **p<0.01 ***p<0.001.
QOC: quality of care; C.I.: confidence interval; LCL: Lower confidence limit; UCL: Upper confidence limit.
Adjusted for surgeon’s age, cci, and Number of vessels obstructed.