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Table 5 Multivariate 5-year survival and event rates estimated by the corrected group analysis method

From: The adherence paradox: guideline deviations contribute to the increased 5-year survival of breast cancer patients

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
  1. Legend: First row of each comparison yields higher hazard and lower/equal survival (effect coding)