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Identifying adolescents at risk for suboptimal adherence to tuberculosis treatment: A prospective cohort study

Author

Listed:
  • Silvia S Chiang
  • Joshua Ray Tanzer
  • Jeffrey R Starke
  • Jennifer F Friedman
  • Betsabe Roman Sinche
  • Katya León Ostos
  • Rosa Espinoza Meza
  • Elmer Altamirano
  • Catherine B Beckhorn
  • Victoria E Oliva Rapoport
  • Marco A Tovar
  • Leonid Lecca

Abstract

Adolescents account for an estimated 800,000 incident tuberculosis (TB) cases annually and are at risk for suboptimal adherence to TB treatment. Most studies of adolescent TB treatment adherence have used surveillance data with limited psychosocial information. This prospective cohort study aimed to identify risk factors for suboptimal adherence to rifampicin-susceptible TB treatment among adolescents (10–19 years old) in Lima, Peru. We collected psychosocial data using self-administered surveys and clinical data via medical record abstraction. Applying k-means cluster analysis, we grouped participants by psychosocial characteristics hypothesized to impact adherence. Then, we conducted mixed effects regression to compare suboptimal adherence–defined as 10% of doses)–between clusters. Treatment setting (facility vs. home) and drug formulation (single drug vs. fixed dose combination) were interaction terms. Of 249 participants, 90 (36.1%) were female. Median age was 17 (IQR: 15, 16.6) years. We identified three clusters–A, B, and C–of participants based on psychosocial characteristics. Cluster C had the lowest support from caregivers, other family members, and friends; had the weakest motivation to complete TB treatment; were least likely to live with their mothers; and had experienced the most childhood adversity. Among the 118 (47.4%) participants who received facility-based treatment with single drug formulations, adherence did not differ between Clusters A and B, but Cluster C had six-fold odds of suboptimal adherence compared to Cluster A. In Clusters B and C, adherence worsened over time, but only in Cluster C did mean adherence fall below 90% within six months. Our findings have implications for the care of adolescents with TB. When caring for adolescents with low social support and other risk factors, clinicians should take extra measures to reinforce adherence, such as identifying a community health worker or peer to provide treatment support. Implementing newly recommended shorter regimens also may facilitate adherence.

Suggested Citation

  • Silvia S Chiang & Joshua Ray Tanzer & Jeffrey R Starke & Jennifer F Friedman & Betsabe Roman Sinche & Katya León Ostos & Rosa Espinoza Meza & Elmer Altamirano & Catherine B Beckhorn & Victoria E Oliva, 2024. "Identifying adolescents at risk for suboptimal adherence to tuberculosis treatment: A prospective cohort study," PLOS Global Public Health, Public Library of Science, vol. 4(2), pages 1-16, February.
    • Handle: RePEc:plo:pgph00:0002918
    DOI: 10.1371/journal.pgph.0002918
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    1. van Buuren, Stef & Groothuis-Oudshoorn, Karin, 2011. "mice: Multivariate Imputation by Chained Equations in R," Journal of Statistical Software, Foundation for Open Access Statistics, vol. 45(i03).
    2. repec:plo:pone00:0118457 is not listed on IDEAS
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