Self-reported daily walking time in COPD: relationship with relevant clinical and functional characteristics

Maria A Ramon,1–3 Cristina Esquinas,1 Miriam Barrecheguren,1 Eulogio Pleguezuelos,4,5 Jesús Molina,6 José A Quintano,7 Miguel Roman-Rodríguez,8 Karlos Naberan,9 Carl Llor,10 Carlos Roncero,11–14 Marc Miravitlles1,3 1Department of Pneumology, Vall d’Hebron University Hospital, 2Faculty of Medicine, Autonomous University of Barcelona, 3Biomedical Research Networking Center Consortium of Respiratory Diseases (CIBERES), 4Physical Medicine and Rehabilitation Department, Mataró Hospital, 5TecnoCampus, College of Health Sciences, University of Pompeu Fabra, Mataró-Maresme, Barcelona, 6Francia Health Center, Dirección Asistencial Oeste, Madrid, 7Lucena Health Center I, Lucena, Córdoba, 8Son Pisà Primary Health Care Center, Palma de Mallorca, 9Campo de Belchite Health Center, Zaragoza, 10Primary Care Centre Via Roma, 11Addiction and Dual Diagnosis Unit, Psychiatry Service, Vall d’Hebron University Hospital, 12Barcelona Public Health Agency (ASPB), Barcelona, 13Biomedical Research Networking Center Consortium of Mental Health (CIBERSAM), Madrid, 14Department of Psychiatry, Autonomous University of Barcelona, Barcelona, Spain Background: Quantifying physical activity in chronic obstructive pulmonary disease (COPD) is important as physical inactivity is related to poor health outcomes. This study analyzed the relationship between patients’ self-reported daily walking time and relevant characteristics related to COPD severity.Methods: Pooled analysis was performed on data from four observational studies on which daily walking time was gathered from a personal interview. Patients were classified as physically inactive if walking time was 3, post-bronchodilator forced expiratory volume in the first second 4, and CAT score >30.Conclusion: Lower self-reported walking times are related to worse markers of disease severity in COPD. Keywords: COPD, physical activity, symptoms