The Association between Household Socioeconomic Position and Prevalent Tuberculosis in Zambia: A Case-Control Study
2011

Socioeconomic Factors and Tuberculosis in Zambia

Sample size: 370 publication 10 minutes Evidence: moderate

Author Information

Author(s): Boccia Delia, Hargreaves James, De Stavola Bianca Lucia, Fielding Katherine, Schaap Ab, Godfrey-Faussett Peter, Ayles Helen

Primary Institution: London School of Hygiene and Tropical Medicine

Hypothesis

How does household socioeconomic position affect the prevalence of tuberculosis in Zambia?

Conclusion

Improving household socioeconomic position and food availability may help control tuberculosis in Zambia.

Supporting Evidence

  • Low household socioeconomic position was associated with a higher prevalence of tuberculosis.
  • Food availability was identified as a key factor mediating the relationship between socioeconomic position and tuberculosis.
  • Approximately 42% of tuberculosis cases could be attributed to inadequate protein consumption.

Takeaway

If families have less money and food, they are more likely to get sick with tuberculosis. Helping them can make a big difference.

Methodology

A case-control study nested within a TB and HIV prevalence survey, comparing culture-positive TB cases with randomly selected controls.

Potential Biases

Potential selection bias due to the nature of case detection and socioeconomic reporting.

Limitations

The study's cross-sectional design limits the ability to determine causality, and the sample size was small.

Participant Demographics

Participants included 52 TB cases and 318 controls, with a mean age of 36 years.

Statistical Information

P-Value

p<0.001

Confidence Interval

95%CI: 2.0–19.2 for low household SEP

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1371/journal.pone.0020824

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