The 6-Min Walk Distance, Peak Oxygen Uptake, and Mortality in COPD
Keywords: COPD; exercise capacity; mortality; peak oxygen uptake; BMI; body mass index; BODE; body-mass index, airflow obstruction, dyspnea, and exercise capacity; CI; confidence interval; CPET; cardiopulmonary exercise test; HR; hazard ratio; MMRC; modified Medica