Burden and challenges in managing TB infection among people with occupational exposure to silica in India

BACKGROUND: Occupational exposure to silica increases the risk of TB infection (TBI) and disease. This study aimed to determine the prevalence of TBI and explore challenges in TBI management in such individuals in two districts of India during 2023. METHODS: This was an explanatory mixed-methods stu...

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Main Authors: B. Kalottee, P. Mahajan, A. Nuken, D. Nair, P. Thekkur, A.M.V. Kumar, V. Rai, M. Parmar, H. Solanki, R. Rao, S.K. Mattoo, R. Kumar
Format: Article
Language:English
Published: International Union Against Tuberculosis and Lung Disease (The Union) 2024-11-01
Series:IJTLD Open
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Online Access:https://www.ingentaconnect.com/contentone/iuatld/ijtldo/2024/00000001/00000011/art00005
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author B. Kalottee
P. Mahajan
A. Nuken
D. Nair
P. Thekkur
A.M.V. Kumar
V. Rai
M. Parmar
H. Solanki
R. Rao
S.K. Mattoo
R. Kumar
author_facet B. Kalottee
P. Mahajan
A. Nuken
D. Nair
P. Thekkur
A.M.V. Kumar
V. Rai
M. Parmar
H. Solanki
R. Rao
S.K. Mattoo
R. Kumar
author_sort B. Kalottee
collection DOAJ
description BACKGROUND: Occupational exposure to silica increases the risk of TB infection (TBI) and disease. This study aimed to determine the prevalence of TBI and explore challenges in TBI management in such individuals in two districts of India during 2023. METHODS: This was an explanatory mixed-methods study with a quantitative cohort design and qualitative descriptive in-depth interviews. RESULTS: Among 1,555 individuals with occupational exposure to silica, 593 (38%, 95% CI 36–41) underwent interferon-gamma release assay (IGRA) for TBI, of whom 255 (43%, 95% CI 39–47) were found IGRA-positive. Males with occupational silica exposure for ≥20 years had a significantly higher risk of TBI. Of these 160 individuals eligible for TB preventive therapy (TPT), 153 (96%, 95% CI 92–98) were initiated on TPT and 124 (81%, 95% CI 74–88) completed TPT. The low uptake of IGRA was attributed to the stigma associated with TB and reluctance to undergo any medical evaluation. CONCLUSIONS: Compared to the general population, individuals with occupational exposure to silica have an almost two times higher prevalence of TBI. Further research is required to identify the threshold of silica exposure to be considered for screening for TBI. Efforts to increase awareness and decrease stigma can improve the uptake of testing for TBI and TB disease.
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spelling doaj-art-d78684b578cf4cce98a74c7dd51ca6672025-01-23T13:39:03ZengInternational Union Against Tuberculosis and Lung Disease (The Union)IJTLD Open3005-75902024-11-0111150150710.5588/ijtldopen.24.04025Burden and challenges in managing TB infection among people with occupational exposure to silica in IndiaB. Kalottee0P. Mahajan1A. Nuken2D. Nair3P. Thekkur4A.M.V. Kumar5V. Rai6M. Parmar7H. Solanki8R. Rao9S.K. Mattoo10R. Kumar11International Union Against Tuberculosis and Lung Disease (The Union), South-East Asia Office, New Delhi, India;International Union Against Tuberculosis and Lung Disease (The Union), South-East Asia Office, New Delhi, India;International Union Against Tuberculosis and Lung Disease (The Union), South-East Asia Office, New Delhi, India;Centre for Operational Research, The Union, Paris, France;Centre for Operational Research, The Union, Paris, France;Centre for Operational Research, The Union, Paris, France;Directorate of Health Services, Madhya Pradesh, Bhopal, India;World Health Organization (WHO), Country Office for India, New Delhi, India;World Health Organization (WHO), Country Office for India, New Delhi, India;Central TB Division, Directorate General of Health Services, Ministry of Health & Family Welfare, New Delhi, India;Central TB Division, Directorate General of Health Services, Ministry of Health & Family Welfare, New Delhi, India;RHTC Hospital, Ministry of Health & Family Welfare, Najafgarh, New Delhi, India.BACKGROUND: Occupational exposure to silica increases the risk of TB infection (TBI) and disease. This study aimed to determine the prevalence of TBI and explore challenges in TBI management in such individuals in two districts of India during 2023. METHODS: This was an explanatory mixed-methods study with a quantitative cohort design and qualitative descriptive in-depth interviews. RESULTS: Among 1,555 individuals with occupational exposure to silica, 593 (38%, 95% CI 36–41) underwent interferon-gamma release assay (IGRA) for TBI, of whom 255 (43%, 95% CI 39–47) were found IGRA-positive. Males with occupational silica exposure for ≥20 years had a significantly higher risk of TBI. Of these 160 individuals eligible for TB preventive therapy (TPT), 153 (96%, 95% CI 92–98) were initiated on TPT and 124 (81%, 95% CI 74–88) completed TPT. The low uptake of IGRA was attributed to the stigma associated with TB and reluctance to undergo any medical evaluation. CONCLUSIONS: Compared to the general population, individuals with occupational exposure to silica have an almost two times higher prevalence of TBI. Further research is required to identify the threshold of silica exposure to be considered for screening for TBI. Efforts to increase awareness and decrease stigma can improve the uptake of testing for TBI and TB disease.https://www.ingentaconnect.com/contentone/iuatld/ijtldo/2024/00000001/00000011/art00005tuberculosisminingoccupational healthtb preventive treatmenttpt
spellingShingle B. Kalottee
P. Mahajan
A. Nuken
D. Nair
P. Thekkur
A.M.V. Kumar
V. Rai
M. Parmar
H. Solanki
R. Rao
S.K. Mattoo
R. Kumar
Burden and challenges in managing TB infection among people with occupational exposure to silica in India
IJTLD Open
tuberculosis
mining
occupational health
tb preventive treatment
tpt
title Burden and challenges in managing TB infection among people with occupational exposure to silica in India
title_full Burden and challenges in managing TB infection among people with occupational exposure to silica in India
title_fullStr Burden and challenges in managing TB infection among people with occupational exposure to silica in India
title_full_unstemmed Burden and challenges in managing TB infection among people with occupational exposure to silica in India
title_short Burden and challenges in managing TB infection among people with occupational exposure to silica in India
title_sort burden and challenges in managing tb infection among people with occupational exposure to silica in india
topic tuberculosis
mining
occupational health
tb preventive treatment
tpt
url https://www.ingentaconnect.com/contentone/iuatld/ijtldo/2024/00000001/00000011/art00005
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