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.
METHOD: 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.
CONCLUSION: 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.
Document Type: Regular Paper
Affiliations: 1: National Tuberculosis Programme, Hanoi, Viet Nam 2: International Unit, KNCV Tuberculosis Foundation, The Hague, The Netherlands 3: Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands 4: Center for Poverty-Related Communicable Diseases, Amsterdam, The Netherlands; and Institute of Global Health and Development, Academic Medical Center, Amsterdam, The Netherlands
Publication date: January 1, 2011
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