Breathlessness during daily activity: The psychometric properties of the London Chest Activity of Daily Living Scale in patients with advanced disease and refractory breathlessness

Background:The London Chest Activitiesof Daily LivingScale measures the impact of breathlessness on both activity and social functioning. However, the London Chest Activitiesof Daily LivingScale is not routinely used in patients with advanced disease.Aim:To assess the psychometric properties of the London Chest Activitiesof Daily LivingScale in patients with refractory breathlessness due to advanced disease.Design:A cross-sectional secondary analysis of data from a randomised controlled parallel-group, pragmatic, single-blind fast-tracktrial (randomised controlled trial) investigating the effectiveness of an integrated palliative and respiratory care service for patients with advanced disease and refractory breathlessness, known as the Breathlessness Support Service (NCT01165034). All patients completed the following questionnaires: the London Chest Activitiesof Daily LivingScale, Chronic Respiratory Questionnaire, the Palliative care Outcome Scale, Palliative care Outcome Scale–symptoms, the Hos...