Tuberculin skin test result and risk of death among persons with active TB.

BACKGROUND: Although the tuberculin skin test (TST) is frequently used to aid in the diagnosis of tuberculosis (TB) disease and to identify persons with latent TB infection, it is an imperfect test and approximately 10-25% of persons with microbiologically confirmed TB disease have a negative TST. P...

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Main Authors: Sara C Auld, Eleanor S Click, Charles M Heilig, Roque Miramontes, Kevin P Cain, Gregory P Bisson, William R Mac Kenzie
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3823982?pdf=render
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author Sara C Auld
Eleanor S Click
Charles M Heilig
Roque Miramontes
Kevin P Cain
Gregory P Bisson
William R Mac Kenzie
author_facet Sara C Auld
Eleanor S Click
Charles M Heilig
Roque Miramontes
Kevin P Cain
Gregory P Bisson
William R Mac Kenzie
author_sort Sara C Auld
collection DOAJ
description BACKGROUND: Although the tuberculin skin test (TST) is frequently used to aid in the diagnosis of tuberculosis (TB) disease and to identify persons with latent TB infection, it is an imperfect test and approximately 10-25% of persons with microbiologically confirmed TB disease have a negative TST. Previous studies have suggested that persons with a negative TST are more likely to present with severe TB disease and have an increased rate of TB-related death. METHODS: We analyzed culture-confirmed TB cases captured in US TB surveillance data from 1993 to 2008 and performed multivariate logistic regression analysis to determine the association between TST result and death. RESULTS: Of 284,866 cases of TB reported in the US, 58,180 persons were eligible for inclusion in the analysis and 3,270 of those persons died after initiating TB treatment. Persons with a negative TST accounted for only 14% of the eligible cases but accounted for 42% of the deaths. Persons with a TST≥15 mm had 67% lower odds of death than persons with a negative TST (adjusted odds ratio 0.33, 95% confidence interval 0.30-0.36). CONCLUSIONS: A negative TST is associated with an increased risk of death among persons with culture-confirmed TB disease, even after adjustment for HIV status, site of TB disease, sputum smear AFB status, drug susceptibility, age, sex, and origin of birth. In addition to indicating risk of developing disease, the TST may also be a marker for increased risk of death.
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spelling doaj.art-2e6a05e7794347ce998646175b9c58ce2022-12-21T22:44:59ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-01811e7877910.1371/journal.pone.0078779Tuberculin skin test result and risk of death among persons with active TB.Sara C AuldEleanor S ClickCharles M HeiligRoque MiramontesKevin P CainGregory P BissonWilliam R Mac KenzieBACKGROUND: Although the tuberculin skin test (TST) is frequently used to aid in the diagnosis of tuberculosis (TB) disease and to identify persons with latent TB infection, it is an imperfect test and approximately 10-25% of persons with microbiologically confirmed TB disease have a negative TST. Previous studies have suggested that persons with a negative TST are more likely to present with severe TB disease and have an increased rate of TB-related death. METHODS: We analyzed culture-confirmed TB cases captured in US TB surveillance data from 1993 to 2008 and performed multivariate logistic regression analysis to determine the association between TST result and death. RESULTS: Of 284,866 cases of TB reported in the US, 58,180 persons were eligible for inclusion in the analysis and 3,270 of those persons died after initiating TB treatment. Persons with a negative TST accounted for only 14% of the eligible cases but accounted for 42% of the deaths. Persons with a TST≥15 mm had 67% lower odds of death than persons with a negative TST (adjusted odds ratio 0.33, 95% confidence interval 0.30-0.36). CONCLUSIONS: A negative TST is associated with an increased risk of death among persons with culture-confirmed TB disease, even after adjustment for HIV status, site of TB disease, sputum smear AFB status, drug susceptibility, age, sex, and origin of birth. In addition to indicating risk of developing disease, the TST may also be a marker for increased risk of death.http://europepmc.org/articles/PMC3823982?pdf=render
spellingShingle Sara C Auld
Eleanor S Click
Charles M Heilig
Roque Miramontes
Kevin P Cain
Gregory P Bisson
William R Mac Kenzie
Tuberculin skin test result and risk of death among persons with active TB.
PLoS ONE
title Tuberculin skin test result and risk of death among persons with active TB.
title_full Tuberculin skin test result and risk of death among persons with active TB.
title_fullStr Tuberculin skin test result and risk of death among persons with active TB.
title_full_unstemmed Tuberculin skin test result and risk of death among persons with active TB.
title_short Tuberculin skin test result and risk of death among persons with active TB.
title_sort tuberculin skin test result and risk of death among persons with active tb
url http://europepmc.org/articles/PMC3823982?pdf=render
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