ObjectivesTo evaluate the effects of a home-based pulmonary rehabilitation (PR) programme on anxiety and depressive symptoms, general fatigue and burden in informal caregivers of patients with COPD. We also evaluated the baseline characteristics of both patients and caregivers that contributed to the change in caregiver's outcomes after PR.MethodsIn this retrospective study, patients with COPD were referred to an 8-week home-based PR programme consisting of a weekly supervised 90-minute session. Informal caregivers, according to the patient's preference and its availability, were invited to participate in PR. Caregivers received educational supports, behavioral therapies and self-management strategies using the same methods as for patients. Burden, anxiety and depressive symptoms and general fatigue of caregivers were assessed at baseline and at the end of PR.Results241 patients with COPD and 138 (57.3%) caregivers were included. The majority of the caregivers were women (70.5%), spouses (90.3%) and with at least three comorbidities (57.3%). A large proportion of caregivers showed baseline high burden, anxiety symptoms, and abnormal fatigue (40%, 40%, 45%, respectively). Burden, anxiety and depressive symptoms and general fatigue of informal caregivers were all improved after PR (p<0.05). Long-term oxygen therapy and/or non-invasive ventilation, coronaropathy and/or peripheral arterial disease and a higher baseline mMRC score in patients with COPD were associated with a decrease in caregiver's burden after PR.ConclusionA large proportion of caregivers of patients with COPD showed anxiety symptoms, fatigue and a high burden. These outcomes were improved by integrating the caregiver into a home-based PR programme.