A survey of tuberculosis prevalence in Hanoi, Vietnam
METHODS: A random selection was carried out involving 11624 subjects from 20 communes within the city.
RESULTS: On chest X-ray examination, 317 subjects (2.73%) showed abnormal lung opacity, of which 17 were sputum smear-positive, two concentrated smear-positive and three culture-positive, all with active TB. The prevalence of sputum smear-positive pulmonary TB was 146 per 100000 in persons aged ≥15 years (95%CI 65–228).
CONCLUSION: This is the first large-scale assessment of the prevalence of TB in Hanoi. The prevalence rate was higher than expected, suggesting that a significant number of patients with active TB, particularly females, remain undiagnosed, thus representing a continuing potential source of transmission in the community.
Keywords: Hanoi; prevalence; tuberculosis
Document Type: Regular Paper
Affiliations: 1: Islands Public Health Center, Hachijo, Tokyo, Japan 2: Hanoi Tuberculosis and Lung Disease Hospital, Hanoi, Vietnam 3: Hanoi Department of Health, Hanoi, Vietnam 4: International Medical Center of Japan, Tokyo, Japan 5: Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan 6: Niigata University Medical and Dental Hospital, Life Science Medical Center, Niigata, Japan
Publication date: 01 May 2007
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