Large underreporting of COPD as cause of death-results from a population-based cohort study - 21/09/21
Abstract |
Background |
In 2019, WHO estimated COPD to be the third leading cause of death in the world. However, COPD is probably underestimated as cause of death due to the well-known under-diagnosis.
Aim |
To evaluate the proportion of and factors associated with COPD recorded as cause of death in a long-term follow-up of a population-based COPD cohort.
Methods |
The study population includes all individuals (n = 551) with COPD defined as chronic airway obstruction (post-bronchodilator FEV1/FVC<0.70) + respiratory symptoms identified after re-examinations of four population-based cohorts. Mortality and underlying or contributing cause of death following ICD-10 classification were collected from the Swedish National Board of Health and Welfares register from date of examination in 2002–04 until 2016.
Results |
The study sample consisted of 32.3% GOLD 1, 55.9% GOLD 2, and 11.8% GOLD 3–4. The mean follow-up time was 10.3 (SD3.77) years and the cumulative mortality 45.0%. COPD (ICD-10 J43-J44) was recorded on 28.2% (n = 70) of the death certificates (11.1%, 25.7% and 57.1% by GOLD stage), whereof n = 35 had COPD recorded as underlying and n = 35 as contributing cause of death. To have COPD recorded as cause of death was independently associated with ex- and current smoking and a self-reported physician diagnosis of COPD, while male sex, overweight/obesity and higher FEV1% of predicted associated with the absence.
Conclusions |
COPD was largely underreported cause of death. Even among those with severe/very severe disease, COPD was only mentioned on 57.1% of the death certificates.
Le texte complet de cet article est disponible en PDF.Highlights |
• | Only 28.2% had COPD recorded as either underlying or contributing cause of death. |
• | In those having COPD recorded as cause of death, it was the underlying cause in 50%. |
• | Severe COPD was not reported even as contributing cause of death in 43%. |
• | Under-diagnosis and -recognition of COPD contribute to the underreporting. |
Keywords : Epidemiology, Chronic obstructive pulmonary disease, Mortality, Risk factor, Physician diagnosis
Plan
Vol 186
Article 106518- septembre 2021 Retour au numéro
Article précédent
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