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Geographic analysis of latent tuberculosis screening: A health system approach

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  • John P Bonnewell
  • Laura Farrow
  • Kristen V Dicks
  • Gary M Cox
  • Jason E Stout

Abstract

Background: Novel approaches are required to better focus latent tuberculosis infection (LTBI) efforts in low-prevalence regions. Geographic information systems, used within large health systems, may provide one such approach. Methods: A retrospective, cross-sectional design was used to integrate US Census and Duke Health System data between January 1, 2010 and October 31, 2017 and examine the relationships between LTBI screening and population tuberculosis risk (assessed using the surrogate measure of proportion of persons born in tuberculosis-endemic regions) by census tract. Results: The median proportion of Duke patients screened per census tract was 0.01 (range 0–0.1, interquartile range 0.01–0.03). The proportion of Duke patients screened within a census tract significantly but weakly correlated with the population risk. Furthermore, patients residing in census tracts with higher population tuberculosis risk were more likely to be screened with TST than with an IGRA (p

Suggested Citation

  • John P Bonnewell & Laura Farrow & Kristen V Dicks & Gary M Cox & Jason E Stout, 2020. "Geographic analysis of latent tuberculosis screening: A health system approach," PLOS ONE, Public Library of Science, vol. 15(11), pages 1-8, November.
    • Handle: RePEc:plo:pone00:0242055
    DOI: 10.1371/journal.pone.0242055
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