Table 3—

Definition of end-stage chronic obstructive pulmonary disease (COPD) based on clinical features

DomainQualification
Airflow limitationVery severe (FEV1 <30% pred) COPD
Performance statusSeverely limited and declining
Other criteria#Advanced agePresence of multiple comorbiditiesSevere systemic manifestations/complications of COPD (e.g. body composition alterations, peripheral muscle dysfunction, respiratory muscle dysfunction, osteoporosis, pulmonary hypertension, cardiac impairment, fluid retention/oedema)
  • FEV1: forced expiratory volume in one second; % pred: % predicted. #: at least one. Reproduced and modified from 14.