Document Detail

The measurement of household socio-economic position in tuberculosis prevalence surveys: a sensitivity analysis.
MedLine Citation:
PMID:  23232003     Owner:  NLM     Status:  In-Data-Review    
OBJECTIVE: To assess the robustness of socio-economic inequalities in tuberculosis (TB) prevalence surveys.
DESIGN: Data were drawn from the TB prevalence survey conducted in Lusaka Province, Zambia, in 2005-2006. We compared TB socio-economic inequalities measured through an asset-based index (Index 0) using principal component analysis (PCA) with those observed using three alternative indices: Index 1 and Index 2 accounted respectively for the biases resulting from the inclusion of urban assets and food-related variables in Index 0. Index 3 was built using regression-based analysis instead of PCA to account for the effect of using a different assets weighting strategy.
RESULTS: Household socio-economic position (SEP) was significantly associated with prevalent TB, regardless of the index used; however, the magnitude of inequalities did vary across indices. A strong association was found for Index 2, suggesting that the exclusion of food-related variables did not reduce the extent of association between SEP and prevalent TB. The weakest association was found for Index 1, indicating that the exclusion of urban assets did not lead to higher extent of TB inequalities.
CONCLUSION: TB socio-economic inequalities seem to be robust to the choice of SEP indicator. The epidemiological meaning of the different extent of TB inequalities is unclear. Further studies are needed to confirm our conclusions.
D Boccia; J Hargreaves; L D Howe; B L De Stavola; K Fielding; H Ayles; P Godfrey-Faussett
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease     Volume:  17     ISSN:  1815-7920     ISO Abbreviation:  Int. J. Tuberc. Lung Dis.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2012-12-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9706389     Medline TA:  Int J Tuberc Lung Dis     Country:  France    
Other Details:
Languages:  eng     Pagination:  39-45     Citation Subset:  IM    
Faculty of Epidemiology and Population Health, Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK.
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