Table 4

Cox proportional hazards model

HR (95% CI)p‐value
6MWD m0.996 (0.993–0.999)0.003
Age yrs1.03 (1.01–1.06)0.04
FEV1 L0.80 (0.40–1.60)0.53
BMI kg·m−20.95 (0.91–0.99)0.01
Charlson Index0.84 (0.68–1.03)0.10
  • HR: hazard ratio

  • CI: confidence interval

  • 6MWD: 6‐min walk distance

  • FEV1: forced expiratory volume in one second

  • BMI: body mass index

  • There were 84 deaths and 114 censored observations (58.8%)

  • Model p‐value was <0.0001