Table 2.
COX PROPORTIONAL HAZARD MODEL SUMMARY FOR AGE AND/OR COMORBIDITY-ADJUSTED INFLUENCE OF PRE-6MWD AND POST-6MWD ON THE RISK OF DEATH AND FOR AGE-, COMORBIDITY-, AND PRE–6MWD-ADJUSTED INFLUENCE OF Δ6MWD ON THE RISK OF DEATH
6MWD ratio | Estimate β | Lower 95%, confidence limit | Upper 95%, confidence limit | |
---|---|---|---|---|
Age-adjusted 6MWD and risk of death | ||||
Pre-6MWD | ||||
Log-hazard | x m:2x m | 0.056 | 0.001 | 0.111 |
Hazard | x m:2x m | 1.058 | 1.001 | 1.118 |
Post-6MWD | ||||
Log-hazard | x m:2x m | 0.291 | 0.211 | 0.370 |
Hazard | x m:2x m | 1.337 | 1.234 | 1.448 |
Δ6MWD | ||||
Log-hazard | x m:2x m | 0.060 | −0.007 | 0.127 |
Hazard | x m:2x m | 1.062 | 0.993 | 1.136 |
Age- and comorbidity-adjusted 6MWD and risk of death | ||||
Pre-6MWD | ||||
Log-hazard | x m:2x m | 0.056 | 0.001 | 0.111 |
Hazard | x m:2x m | 1.058 | 1.001 | 1.118 |
Post-6MWD | ||||
Log-hazard | x m:2x m | 0.290 | 0.209 | 0.371 |
Hazard | x m:2x m | 1.336 | 1.232 | 1.449 |
Δ6MWD | ||||
Log-hazard | x m:2x m | 0.055 | −0.013 | 0.122 |
Hazard | x m:2x m | 1.056 | 0.987 | 1.130 |
Age-, comorbidity-, and pre–6MWD-adjusted 6MWD and risk of death | ||||
Δ6MWD | ||||
Log-hazard | x m:2x m | 0.292 | 0.207 | 0.376 |
Hazard | x m:2 x m | 1.339 | 1.231 | 1.457 |
Abbreviation: 6MWD, indicates 6-minute walk distance.