title: A survey of tuberculosis prevalence in Hanoi, Vietnam.
abstract: OBJECTIVE
  To assess the prevalence of tuberculosis (TB) in Hanoi, Vietnam, in 2003/2004.
  
  
  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 >or=15 years (95%CI 65-228).
  
  
  CONCLUSIONS
  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.
authors: Islands Public Health Center, Hachijo, Tokyo, Japan.
authors: T
authors: T
authors: Horie
authors: L T
authors: LT
authors: Lien
authors: L A
authors: LA
authors: Tuan
authors: P L
authors: PL
authors: Tuan
authors: S
authors: S
authors: Sakurada
authors: H
authors: H
authors: Yanai
authors: N
authors: N
authors: Keicho
authors: K
authors: K
authors: Nakata
mesh_terms: D000328:Adult; D017677:Age Distribution; D000368:Aged; D003371:Cough / Q000382:microbiology; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D017678:Sex Distribution; D013183:Sputum / Q000382:microbiology; D014397:Tuberculosis, Pulmonary / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology*; D014504:Urban Health; D014744:Vietnam / Q000453:epidemiology