title: Prevalence of smear-positive tuberculosis in persons aged ≥ 15 years in Bangladesh: results from a national survey, 2007-2009.
abstract: The aim of this study was to determine the nationwide prevalence of smear-positive tuberculosis (TB) in Bangladesh. A multi-stage cluster survey of a random sample of persons aged ≥ 15 years was included in 40 clusters (20 urban, 20 rural). Two sputum samples were collected from study participants and tested initially by fluorescence microscopy and confirmed by the Ziehl-Neelsen method. The crude and adjusted prevalence rates and 95% confidence intervals (CIs) were calculated using standard methods. A total of 33 new smear-positive TB cases were detected among 52 098 individuals who participated in the study. The average participation rate was over 80%. The overall crude prevalence of new smear-positive TB in persons aged ≥ 15 years was estimated as 63.3/100 000 (95% CI 43.6-88.9) and the adjusted prevalence was 79.4/100 000 (95% CI 47.1-133.8). TB prevalence was higher in males (n = 24) and in rural areas (n = 20). The prevalence was highest in the 55-64 years age group (201/100 000) and lowest in 15-24 years age group (43.0/100 000). The prevalence was higher in persons with no education (138.6/100 000, 95% CI 78.4-245.0). The overall prevalence of smear-positive TB was significantly lower than the prevalence estimate of the previous nationwide survey in Bangladesh in 1987-1988 (870/100 000).
authors: International Centre for Diarrhoeal Disease Research, Bangladesh, ICDDR,B, Dhaka, Bangladesh.
authors: K
authors: K
authors: Zaman
authors: S
authors: S
authors: Hossain
authors: S
authors: S
authors: Banu
authors: M A
authors: MA
authors: Quaiyum
authors: P C
authors: PC
authors: Barua
authors: M A Hamid
authors: MA
authors: Salim
authors: V
authors: V
authors: Begum
authors: M Akramul
authors: MA
authors: Islam
authors: J
authors: J
authors: Ahmed
authors: M
authors: M
authors: Rifat
authors: E
authors: E
authors: Cooreman
authors: M J
authors: MJ
authors: Van Der Werf
authors: M
authors: M
authors: Borgdorff
authors: F
authors: F
authors: Van Leth
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001459:Bangladesh / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011159:Population Surveillance; D015995:Prevalence; D012424:Rural Population; D014397:Tuberculosis, Pulmonary / Q000453:epidemiology* / Q000382:microbiology; D014505:Urban Population; D055815:Young Adult