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article · PLOS Global Public Health · 2025

The Accuracy of the Uganda National Tuberculosis and Leprosy Program diagnostic algorithm and the World Health Organisation treatment decision algorithms for childhood tuberculosis: A retrospective analysis

Peter James Kitonsa, Bernard Kikaire, Peter Wambi, Annet Nalutaaya, Jascent Nakafeero, Gertrude Nanyonga, Emma Kiconco, Deus Atwiine, Robert Castro, Ernest A Oumo, Hellen Tukamuhebwa Aanyu, Mary G Nabukenya Mudiope, Ezekiel Mupere, Moorine Sekadde, Swomitra K. Mohanty, Adithya Cattamanchi, Eric Wobudeya, Devan Jaganath

Cited by 6Open access

Abstract

Diagnosing childhood pulmonary tuberculosis (TB) is a challenge. This led the Uganda National Tuberculosis and Leprosy Program (NTLP) to develop a clinical treatment decision algorithm (TDA) for children. However, there is limited data on its accuracy, and how it compares to new World Health Organization (WHO) TB TDAs for children. This study aimed to evaluate and compare the accuracy of the 2017 Uganda NTLP diagnostic algorithm with the 2022 WHO TDAs for TB among children. We analyzed four years of clinical data from children <15 years old in Kampala, Uganda. Children were classified as per National Institutes of Health (NIH) consensus definitions (Confirmed, Unconfirmed or Unlikely TB). We applied the 2017 Uganda NTLP and 2022 WHO algorithms (A with chest x-ray [CXR], B without CXR) to make a decision to treat for TB or not, and calculated the sensitivity, specificity and predictive values in reference to Confirmed vs. Unlikely TB, as well as a microbiological and composite reference standard. Of the 699 children included in this analysis, 64% (451/699) were under 5 years, 53% (373/669) were male, 12% (85/699) were Xpert Ultra positive, 11% (74/669) were HIV positive and 6% had severe acute malnutrition (SAM). The Uganda NTLP algorithm had a sensitivity of 97.9% (95% CI: 96.4-99.4) and specificity of 25.9% (95% CI: 21.2-30.7). If CXR was considered unavailable, sensitivity was 97.9% (95% CI: 96.4-99.4) and specificity 28.1% (95% CI: 23.2-33.0). In comparison, WHO TDAs had similar sensitivity to the Uganda NTLP, but algorithm A was more specific (32.2%, 95% CI: 26.9-37.5) and algorithm B was less specific (15.4%, 95% CI: 11.3-19.5). The WHO TDAs had better specificity than the NTLP algorithm with CXR, and worse specificity without CXR. Further optimization of the algorithms is needed to improve specificity and reduce over-treatment of TB in children.

Cite this paper

APA 7

Kitonsa, P. J., Kikaire, B., Wambi, P., Nalutaaya, A., Nakafeero, J., Nanyonga, G., Kiconco, E., Atwiine, D., Castro, R., Oumo, E. A., Aanyu, H. T., Mudiope, M. G. N., Mupere, E., Sekadde, M., Mohanty, S. K., Cattamanchi, A., Wobudeya, E., & Jaganath, D. (2025). The Accuracy of the Uganda National Tuberculosis and Leprosy Program diagnostic algorithm and the World Health Organisation treatment decision algorithms for childhood tuberculosis: A retrospective analysis. PLOS Global Public Health, 5(4), e0004026. https://doi.org/10.1371/journal.pgph.0004026

MLA 9

Kitonsa, Peter James, et al. “The Accuracy of the Uganda National Tuberculosis and Leprosy Program diagnostic algorithm and the World Health Organisation treatment decision algorithms for childhood tuberculosis: A retrospective analysis.” PLOS Global Public Health, vol. 5, no. 4, 2025, p. e0004026, https://doi.org/10.1371/journal.pgph.0004026.

Chicago

Kitonsa, Peter James, Bernard Kikaire, Peter Wambi, Annet Nalutaaya, Jascent Nakafeero, Gertrude Nanyonga, Emma Kiconco, et al. 2025. “The Accuracy of the Uganda National Tuberculosis and Leprosy Program diagnostic algorithm and the World Health Organisation treatment decision algorithms for childhood tuberculosis: A retrospective analysis.” PLOS Global Public Health 5 (4): e0004026. https://doi.org/10.1371/journal.pgph.0004026.

Harvard

Kitonsa, P.J. et al. (2025) ‘The Accuracy of the Uganda National Tuberculosis and Leprosy Program diagnostic algorithm and the World Health Organisation treatment decision algorithms for childhood tuberculosis: A retrospective analysis’, PLOS Global Public Health, 5(4), p. e0004026. Available at: https://doi.org/10.1371/journal.pgph.0004026.

BibTeX
@article{kitonsa2025accuracy,
  title = {{The Accuracy of the Uganda National Tuberculosis and Leprosy Program diagnostic algorithm and the World Health Organisation treatment decision algorithms for childhood tuberculosis: A retrospective analysis}},
  author = {Kitonsa, Peter James and Kikaire, Bernard and Wambi, Peter and Nalutaaya, Annet and Nakafeero, Jascent and Nanyonga, Gertrude and Kiconco, Emma and Atwiine, Deus and Castro, Robert and Oumo, Ernest A and Aanyu, Hellen Tukamuhebwa and Mudiope, Mary G Nabukenya and Mupere, Ezekiel and Sekadde, Moorine and Mohanty, Swomitra K. and Cattamanchi, Adithya and Wobudeya, Eric and Jaganath, Devan},
  journal = {PLOS Global Public Health},
  volume = {5},
  number = {4},
  pages = {e0004026},
  year = {2025},
  doi = {10.1371/journal.pgph.0004026}
}

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