Strategy to Better Select HIV-Infected Individuals for Latent TB Treatment in BCG-Vaccinated Population

Chin Hui Yang, Pei Chun Chan, Say Tsung Liao, Shu Hsing Cheng, Wing Wai Wong, Li Min Huang, Po Ren Hsueh, Hung Yi Chiou

研究成果: 雜誌貢獻文章

9 引文 (Scopus)

摘要

Objective:To evaluate the T-SPOT.TB interferon-γ releasing assay and the tuberculin skin test (TST), for the diagnosis of latent tuberculosis infection(LTBI) and the development of subsequent active tuberculosis, in BCG-vaccinated HIV-infected individuals.Methods:HIV-infected individuals without clinical suspicion of active TB or a past history of TB were enrolled from 1 January 2008 to 30 November 2010. Both T-SPOT.TB test and TST were offered to the participants whom were followed up prospectively until April 30, 2012 for development of TB.Results:Among the 909 participants, 25% had positive TST reactions with cut-off point of 5 mm and 15% had positive T-SPOT.TB results. After a median follow-up of 2.97 years, there were 5 cases developed culture-confirmed active TB (all had dual positive TST and T-SPOT.TB results), and the incidence was 0.17 per 100 person-years. The relative risks (RRs) for subsequent active TB in HIV-infected individuals with positive TST results, positive T-SPOT.TB results and dual positive results compared with the risk for individuals with negative results were 40.6 (95% CI 2.1-767.9), 73.9 (95% CI 3.9-1397.7) and 226.5 (95% CI 12.0-4284), respectively. The number needed to treat to prevent one subsequent TB case among patients with a positive TST, a positive T-SPOT.TB and dual positive results was 35, 22 and 8 respectively.Conclusions:Adopting positive results of the TST and T-SPOT.TB to screen LTBI among BCG-vaccinated HIV-infected individuals might be feasible. Number needed to treat for isoniazid preventive therapy could be reduced significantly by using dual positive strategy.

原文英語
文章編號e73069
期刊PLoS One
8
發行號8
DOIs
出版狀態已發佈 - 八月 27 2013

指紋

Tuberculin Test
tuberculin
skin tests
Tuberculin
Mycobacterium bovis
Skin Tests
Skin
HIV
Population
tuberculosis
Latent Tuberculosis
Numbers Needed To Treat
Therapeutics
isoniazid
Isoniazid
interferons
relative risk
infection
Interferons
Assays

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

引用此文

Strategy to Better Select HIV-Infected Individuals for Latent TB Treatment in BCG-Vaccinated Population. / Yang, Chin Hui; Chan, Pei Chun; Liao, Say Tsung; Cheng, Shu Hsing; Wong, Wing Wai; Huang, Li Min; Hsueh, Po Ren; Chiou, Hung Yi.

於: PLoS One, 卷 8, 編號 8, e73069, 27.08.2013.

研究成果: 雜誌貢獻文章

Yang, Chin Hui ; Chan, Pei Chun ; Liao, Say Tsung ; Cheng, Shu Hsing ; Wong, Wing Wai ; Huang, Li Min ; Hsueh, Po Ren ; Chiou, Hung Yi. / Strategy to Better Select HIV-Infected Individuals for Latent TB Treatment in BCG-Vaccinated Population. 於: PLoS One. 2013 ; 卷 8, 編號 8.
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title = "Strategy to Better Select HIV-Infected Individuals for Latent TB Treatment in BCG-Vaccinated Population",
abstract = "Objective:To evaluate the T-SPOT.TB interferon-γ releasing assay and the tuberculin skin test (TST), for the diagnosis of latent tuberculosis infection(LTBI) and the development of subsequent active tuberculosis, in BCG-vaccinated HIV-infected individuals.Methods:HIV-infected individuals without clinical suspicion of active TB or a past history of TB were enrolled from 1 January 2008 to 30 November 2010. Both T-SPOT.TB test and TST were offered to the participants whom were followed up prospectively until April 30, 2012 for development of TB.Results:Among the 909 participants, 25{\%} had positive TST reactions with cut-off point of 5 mm and 15{\%} had positive T-SPOT.TB results. After a median follow-up of 2.97 years, there were 5 cases developed culture-confirmed active TB (all had dual positive TST and T-SPOT.TB results), and the incidence was 0.17 per 100 person-years. The relative risks (RRs) for subsequent active TB in HIV-infected individuals with positive TST results, positive T-SPOT.TB results and dual positive results compared with the risk for individuals with negative results were 40.6 (95{\%} CI 2.1-767.9), 73.9 (95{\%} CI 3.9-1397.7) and 226.5 (95{\%} CI 12.0-4284), respectively. The number needed to treat to prevent one subsequent TB case among patients with a positive TST, a positive T-SPOT.TB and dual positive results was 35, 22 and 8 respectively.Conclusions:Adopting positive results of the TST and T-SPOT.TB to screen LTBI among BCG-vaccinated HIV-infected individuals might be feasible. Number needed to treat for isoniazid preventive therapy could be reduced significantly by using dual positive strategy.",
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AU - Yang, Chin Hui

AU - Chan, Pei Chun

AU - Liao, Say Tsung

AU - Cheng, Shu Hsing

AU - Wong, Wing Wai

AU - Huang, Li Min

AU - Hsueh, Po Ren

AU - Chiou, Hung Yi

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N2 - Objective:To evaluate the T-SPOT.TB interferon-γ releasing assay and the tuberculin skin test (TST), for the diagnosis of latent tuberculosis infection(LTBI) and the development of subsequent active tuberculosis, in BCG-vaccinated HIV-infected individuals.Methods:HIV-infected individuals without clinical suspicion of active TB or a past history of TB were enrolled from 1 January 2008 to 30 November 2010. Both T-SPOT.TB test and TST were offered to the participants whom were followed up prospectively until April 30, 2012 for development of TB.Results:Among the 909 participants, 25% had positive TST reactions with cut-off point of 5 mm and 15% had positive T-SPOT.TB results. After a median follow-up of 2.97 years, there were 5 cases developed culture-confirmed active TB (all had dual positive TST and T-SPOT.TB results), and the incidence was 0.17 per 100 person-years. The relative risks (RRs) for subsequent active TB in HIV-infected individuals with positive TST results, positive T-SPOT.TB results and dual positive results compared with the risk for individuals with negative results were 40.6 (95% CI 2.1-767.9), 73.9 (95% CI 3.9-1397.7) and 226.5 (95% CI 12.0-4284), respectively. The number needed to treat to prevent one subsequent TB case among patients with a positive TST, a positive T-SPOT.TB and dual positive results was 35, 22 and 8 respectively.Conclusions:Adopting positive results of the TST and T-SPOT.TB to screen LTBI among BCG-vaccinated HIV-infected individuals might be feasible. Number needed to treat for isoniazid preventive therapy could be reduced significantly by using dual positive strategy.

AB - Objective:To evaluate the T-SPOT.TB interferon-γ releasing assay and the tuberculin skin test (TST), for the diagnosis of latent tuberculosis infection(LTBI) and the development of subsequent active tuberculosis, in BCG-vaccinated HIV-infected individuals.Methods:HIV-infected individuals without clinical suspicion of active TB or a past history of TB were enrolled from 1 January 2008 to 30 November 2010. Both T-SPOT.TB test and TST were offered to the participants whom were followed up prospectively until April 30, 2012 for development of TB.Results:Among the 909 participants, 25% had positive TST reactions with cut-off point of 5 mm and 15% had positive T-SPOT.TB results. After a median follow-up of 2.97 years, there were 5 cases developed culture-confirmed active TB (all had dual positive TST and T-SPOT.TB results), and the incidence was 0.17 per 100 person-years. The relative risks (RRs) for subsequent active TB in HIV-infected individuals with positive TST results, positive T-SPOT.TB results and dual positive results compared with the risk for individuals with negative results were 40.6 (95% CI 2.1-767.9), 73.9 (95% CI 3.9-1397.7) and 226.5 (95% CI 12.0-4284), respectively. The number needed to treat to prevent one subsequent TB case among patients with a positive TST, a positive T-SPOT.TB and dual positive results was 35, 22 and 8 respectively.Conclusions:Adopting positive results of the TST and T-SPOT.TB to screen LTBI among BCG-vaccinated HIV-infected individuals might be feasible. Number needed to treat for isoniazid preventive therapy could be reduced significantly by using dual positive strategy.

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