Chronic obstructive pulmonary disease (COPD) is the third leading cause of mortality worldwide [1], and is associated with high morbidity and poor symptom control for long periods of time as the disease progresses [2]. At the end of life, COPD patients have a symptom burden comparable to, and often greater than, that associated with cancer [3]. Comparison between COPD and cancer is relevant because cancer patients have well-established palliative care programmes. Despite having extensive and similar end-of-life (EOL) needs to cancer patients, studies report unrelieved symptoms and low referral rates to palliative care in advanced COPD patients [4].Knowledge about symptoms and symptomatic treatments near death are vital to identify healthcare inequalities, and to identify ways to improve EOL care in advanced COPD. The aim of this study was to estimate the prevalence of symptoms and their management in the last week of life in people with oxygen-dependent COPD or cancer.This was a nationwide, registry-based cohort study including all patients starting long-term oxygen therapy (LTOT) for physician-diagnosed COPD in the national Swedevox register who died between January 1, 2011 and October 14, 2013. The Swedevox register prospectively includes patients starting LTOT in Sweden with a population-based coverage of ∼85% [5]. Details of the register are described elsewhere [6].Data on people with oxygen-dependent COPD were cross-linked using each patient's unique Swedish identification number with data in the Swedish Register of Palliative Care (SRPC). Patients in SRPC who died from cancer during the same time period were included as the comparator group. SRPC is a national quality register of the care of patients during their last week of life regardless of place of care or diagnosis, with a coverage of 87.4% of all cancer deaths nationwide in 2013 [7].The SRPC collects data through an end-of-life questionnaire (ELQ) completed retrospectively by the responsible nurse and/or physician within a week of the patient's death, based on the patient record and experience of the care that may not have been documented, preferably after a team discussion, therefore including the experience of all team members. The ELQ includes data on the presence of breathlessness, pain, death rattle, nausea, anxiety and confusion, and prevalence of prescribing "as-needed" medications for pain, nausea, anxiety and death rattle during the last 7 days of life. A previous study supported the validity of the ELQ [8].Prevalence was considered for each symptom in the questions of the ELQ: "Were any of the following symptoms prevalent at some time during the last week of life?" (yes or no). For any reported symptom, the level of symptom relief was graded as relieved, partially relieved or unrelieved. Prevalence of as-needed medication prescriptions was analysed among symptomatic patients for each identified symptom according to the question "Was medication prescribed for use 'as needed' in the form of injections before death for pain, death rattle, nau...