Positive tuberculin skin tests in nursing home residents in Southern Taiwan

Chia Ming Chang; Nan Yao Lee; Hsin Chun Lee; Chi Jung Wu; Po Lin Chen; Ching Chi Lee; Hsin I. Shih; Wen Chien Ko

doi:10.1016/j.archger.2010.03.013

Positive tuberculin skin tests in nursing home residents in Southern Taiwan

Chia Ming Chang, Nan Yao Lee, Hsin Chun Lee, Chi Jung Wu, Po Lin Chen, Ching Chi Lee, Hsin I. Shih, Wen Chien Ko

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

In Taiwan, the tuberculin skin test (TST) is not recommended as a screening test for Mycobacterium tuberculosis (TB) infections. The aim of this study is to determine the prevalence and predictors of positive tuberculin reactivity and its association with TB infections among nursing home residents in Taiwan. A cross-sectional study and review of medical records were conducted at four nursing homes in Tainan City. A one-stage TST was performed by study nurses using two tuberculin units of purified protein derivative (PPD) of the RT23 strain. An induration ≥10. mm at 72. h was considered to be a positive reaction. Chest radiographs, acid-fast stains and mycobacterial cultures of three sputum samples were performed for those with a positive TST result. Of 115 residents (66.5% participation, mean age 73.1 years) who underwent a TST, 26 (22.6%) had a positive reaction. One woman was microbiologically diagnosed to have pulmonary TB. On multivariate analysis, a Bacille Calmette-Guérin (BCG) scar and a history of myocardial infarction were significantly associated with a positive TST. In conclusions, this study shows a considerable rate of positive TST among nursing home residents in southern Taiwan. A BCG scar and a history of myocardial infarction were associated with a positive TST.

Original language	English
Pages (from-to)	e129-e132
Journal	Archives of gerontology and geriatrics
Volume	51
Issue number	3
DOIs	https://doi.org/10.1016/j.archger.2010.03.013
Publication status	Published - 2010 Nov

All Science Journal Classification (ASJC) codes

Health(social science)
Ageing
Gerontology
Geriatrics and Gerontology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.archger.2010.03.013

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title = "Positive tuberculin skin tests in nursing home residents in Southern Taiwan",

abstract = "In Taiwan, the tuberculin skin test (TST) is not recommended as a screening test for Mycobacterium tuberculosis (TB) infections. The aim of this study is to determine the prevalence and predictors of positive tuberculin reactivity and its association with TB infections among nursing home residents in Taiwan. A cross-sectional study and review of medical records were conducted at four nursing homes in Tainan City. A one-stage TST was performed by study nurses using two tuberculin units of purified protein derivative (PPD) of the RT23 strain. An induration ≥10. mm at 72. h was considered to be a positive reaction. Chest radiographs, acid-fast stains and mycobacterial cultures of three sputum samples were performed for those with a positive TST result. Of 115 residents (66.5% participation, mean age 73.1 years) who underwent a TST, 26 (22.6%) had a positive reaction. One woman was microbiologically diagnosed to have pulmonary TB. On multivariate analysis, a Bacille Calmette-Gu{\'e}rin (BCG) scar and a history of myocardial infarction were significantly associated with a positive TST. In conclusions, this study shows a considerable rate of positive TST among nursing home residents in southern Taiwan. A BCG scar and a history of myocardial infarction were associated with a positive TST.",

author = "Chang, {Chia Ming} and Lee, {Nan Yao} and Lee, {Hsin Chun} and Wu, {Chi Jung} and Chen, {Po Lin} and Lee, {Ching Chi} and Shih, {Hsin I.} and Ko, {Wen Chien}",

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AU - Chang, Chia Ming

AU - Lee, Nan Yao

AU - Lee, Hsin Chun

AU - Wu, Chi Jung

AU - Chen, Po Lin

AU - Lee, Ching Chi

AU - Shih, Hsin I.

AU - Ko, Wen Chien

PY - 2010/11

Y1 - 2010/11

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AB - In Taiwan, the tuberculin skin test (TST) is not recommended as a screening test for Mycobacterium tuberculosis (TB) infections. The aim of this study is to determine the prevalence and predictors of positive tuberculin reactivity and its association with TB infections among nursing home residents in Taiwan. A cross-sectional study and review of medical records were conducted at four nursing homes in Tainan City. A one-stage TST was performed by study nurses using two tuberculin units of purified protein derivative (PPD) of the RT23 strain. An induration ≥10. mm at 72. h was considered to be a positive reaction. Chest radiographs, acid-fast stains and mycobacterial cultures of three sputum samples were performed for those with a positive TST result. Of 115 residents (66.5% participation, mean age 73.1 years) who underwent a TST, 26 (22.6%) had a positive reaction. One woman was microbiologically diagnosed to have pulmonary TB. On multivariate analysis, a Bacille Calmette-Guérin (BCG) scar and a history of myocardial infarction were significantly associated with a positive TST. In conclusions, this study shows a considerable rate of positive TST among nursing home residents in southern Taiwan. A BCG scar and a history of myocardial infarction were associated with a positive TST.

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Positive tuberculin skin tests in nursing home residents in Southern Taiwan

Abstract

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