Table 5.
Multivariate 5-year survival and event rates estimated by the corrected group analysis method
| Cohort | Survival | Event | Hazard | 95 % confidence interval | Test | |||
|---|---|---|---|---|---|---|---|---|
| Samples | Comparison groups | rate | rate | ratio | Lower bound | Upper bound | p-value | |
| 1996–97 | Institutional-invasive | Guideline divergence | 76.8 | 23.2 | 1.612 | 0.690 | 3.766 | n.s. |
| Guideline adherence | 84.5 | 15.5 | ||||||
| 1996–97 | Regional-invasive | Guideline divergence | 79.9 | 20.1 | 1.293 | 0.500 | 3.348 | n.s. |
| Guideline adherence | 83.4 | 16.2 | ||||||
| 2003–04 | Institutional-invasive | Guideline divergence | 86.3 | 13.7 | 1.147 | 0.581 | 2.266 | n.s. |
| Guideline adherence | 87.7 | 12.2 | ||||||
| 2003–04 | Regional-invasive | Guideline divergence | 84.0 | 16.0 | 1.914 | 0.772 | 4.745 | n.s. |
| Guideline adherence | 91.0 | 9.0 | ||||||
| Guideline-adherence | Institutional-invasive | 1996–97 | 89.6 | 10.4 | 1.036 | 0.333 | 3.229 | n.s. |
| 2003–04 | 89.9 | 10.1 | ||||||
| Guideline-adherence | Regional-invasive | 1996–97 | 87.1 | 12.9 | 1.922 | 0.453 | 8.161 | n.s. |
| 2003–04 | 92.2 | 7.8 | ||||||
| Guideline-divergence | Institutional-invasive | 1996–97 | 76.4 | 23.7 | 1.665 | 1.113 | 2.490 | 0.013 |
| 2003–04 | 84.6 | 15.4 | ||||||
| Guideline-divergence | Regional-invasive | 1996–97 | 79.6 | 20.4 | 1.196 | 0.734 | 1.947 | n.s. |
| 2003–04 | 82.5 | 17.5 | ||||||
Legend: First row of each comparison yields higher hazard and lower/equal survival (effect coding)