Chronic obstructive pulmonary disease is missed in asthmatics in specialty care in Trinidad, West Indies
OBJECTIVE: To determine the prevalence of COPD in diagnosed asthmatics receiving specialty respiratory care.
DESIGN: In a cross-sectional study, 258 asthmatics were screened for lung function measures to examine forced expiratory volume after 1 second (FEV1), forced vital capacity (FVC) and post-bronchodilator FEV1/FVC (COPD was defined as FEV1/FVC < 70%).
RESULTS: Of 165 patients evaluated (response rate 64.0%), 53 (32.1%, 95%CI 25.0–39.2) had a study diagnosis of COPD and a mean FEV1/FVC of 60.12 ± 1.2. Proportionally, more males had COPD (50.9%) than asthma (24.1%, P < 0.001). Patients with COPD were 10 years older than asthmatics (P < 0.001). Persons with asthma who smoked were more likely to have COPD (56.0%) (OR 3.26, 95%CI 1.36–7.80, P = 0.006). In both sexes, FEV1/FVC was lower among older people (P < 0.001), with a greater effect (OR 2.75, 95%CI 1.00–7.56, P < 0.01) seen among men in this cross-sectional study.
CONCLUSIONS: One third of diagnosed asthmatics in specialty care also have COPD. Lung function was lower among older persons. Early spirometric evaluation of elderly asthmatics who smoke can determine the presence of COPD and facilitate appropriate management.
Document Type: Regular Paper
Affiliations: 1: Faculty of Medicine, University of the West Indies, St Augustine, Trinidad and Tobago 2: Faculty of Science and Agriculture, University of the West Indies, St Augustine, Trinidad and Tobago
Publication date: September 1, 2007
The International Journal of Tuberculosis and Lung Disease publishes articles on all aspects of lung health, including public health-related issues such as training programmes, cost-benefit analysis, legislation, epidemiology, intervention studies and health systems research. The IJTLD is dedicated to the continuing education of physicians and health personnel and the dissemination of information on lung health world-wide.
To share scientific research of immediate concern as rapidly as possible, The Union is fast-tracking the publication of certain articles from the IJTLD and publishing them on The Union website, prior to their publication in the Journal. Read fast-track articles.
Certain IJTLD articles are also selected for translation into French, Spanish, Chinese or Russian. These are available on the Union website.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- International Journal of Tuberculosis and Lung Disease
- Public Health Action
- Ingenta Connect is not responsible for the content or availability of external websites