title: Household expenditure and tuberculosis prevalence in VietNam: prediction by a set of household indicators.
abstract: OBJECTIVE
  To study the association between TB and household expenditure in a nationwide TB prevalence survey in Viet Nam using nine household characteristics.
  
  
  METHODS
  To assess the prevalence of TB in Viet Nam, a nationwide stratified cluster sample survey was conducted from 2006 to 2007. Nine household characteristics used in the second Viet Nam Living Standards Survey (VLSS) were scored per household. In the VLSS dataset, we regressed these nine characteristics against household expenditure per capita, and used the coefficients to predict household expenditure level (in quintiles) in our survey and assess its relation with TB prevalence.
  
  
  RESULTS
  The prevalence of bacteriologically confirmed TB was 307 per 100,000 population in persons aged ≥ 15 years (95%CI 249-366). After adjustment for confounders, prevalence was found to be associated with household expenditure level: the rate was 2.5 times higher for those in the lowest household expenditure quintile (95%CI 1.6-3.9) than those in the highest quintile.
  
  
  CONCLUSIONS
  With a set of nine household characteristics, we were able to predict household expenditure level fairly accurately. There was a significant association between TB prevalence rates and estimated household expenditure level, showing that TB is related to poverty in Viet Nam.
authors.affiliation: National Tuberculosis Programme, Hanoi, Viet Nam. nguyenbinhhoatb@yahoo.com
authors.forename: N B
authors.initials: NB
authors.lastname: Hoa
authors.forename: E W
authors.initials: EW
authors.lastname: Tiemersma
authors.forename: D N
authors.initials: DN
authors.lastname: Sy
authors.forename: N V
authors.initials: NV
authors.lastname: Nhung
authors.forename: A
authors.initials: A
authors.lastname: Gebhard
authors.forename: M W
authors.initials: MW
authors.lastname: Borgdorff
authors.forename: F G J
authors.initials: FG
authors.lastname: Cobelens
mesh_terms: D000293:Adolescent; D000328:Adult; D019352:Censuses; D016000:Cluster Analysis; D003430:Cross-Sectional Studies; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007407:Interviews as Topic; D008297:Male; D008875:Middle Aged; D011203:Poverty; D015995:Prevalence; D012372:ROC Curve; D015203:Reproducibility of Results; D018570:Risk Assessment; D012307:Risk Factors; D012959:Socioeconomic Factors; D014376:Tuberculosis / Q000175:diagnosis / Q000453:epidemiology*; D014744:Vietnam / Q000453:epidemiology; D055815:Young Adult