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Prevalence of COPD by Disease Severity in Men and Women in Northern Vietnam
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine. The OLIN Studies, Norrbotten County Council, Luleå, Sweden .
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2014 (English)In: COPD: Journal of Chronic Obstructive Pulmonary Disease, ISSN 1541-2555, Vol. 11, no 5, 575-581 p.Article in journal (Refereed) Published
Abstract [en]

The prevalence of COPD and its risk factor pattern varies between different areas of the world. The aim of this study was to investigate the prevalence of COPD by disease severity in men and women and risk factors for COPD in northern Vietnam. From all 5782 responders to a questionnaire survey, a randomly selected sample of 1500 subjects was invited to a clinical follow-up study. The methods included a structured interview using a modified GA2LEN study questionnaire for registration of symptoms and possible determinants of disease. Spirometry was performed before and after bronchodilation. The age distribution of the sample was 23-72 years. Of 684 subjects attending, 565 completed acceptable spirometric measurements. The prevalence of COPD defined by the GOLD criteria was 7.1%; in men 10.9% and in women 3.9% (p = 0.002). Of those 3.4% had a mild disease, 2.8% a moderate and 0.9% a severe disease. In ages >50 years, 23.5% of men and 6.8% of women had COPD. Among smokers aged >60 years (all men), 47.8% had COPD. None of the women with COPD had been smokers. Increasing age, smoking and male sex were the dominating risk factors, although male sex lost its significance in a multivariate setting. The prevalence of COPD among adults in northern Vietnam was 7.1% and was considerably higher among men than women. The prevalence increased considerably with age. Increasing age and smoking, the latter among men only, were the most important determinants of COPD.

Place, publisher, year, edition, pages
Informa Plc. , 2014. Vol. 11, no 5, 575-581 p.
Keyword [en]
COPD, Vietnam, risk factors, population survey, spirometry, smoking
National Category
Public Health, Global Health, Social Medicine and Epidemiology
URN: urn:nbn:se:umu:diva-94923DOI: 10.3109/15412555.2014.898039ISI: 000342056200014OAI: diva2:762086
Available from: 2014-11-10 Created: 2014-10-20 Last updated: 2014-11-10Bibliographically approved

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Rönmark, Eva
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