Prevalence of tuberculosis infection among adults of thiruvananthapuram district of kerala as measured by interferon gamma release assay – A cross-sectional study

Background: To achieve the goals of the end tuberculosis (TB) strategy, strategies for management of TB infection (TBI) have to be expanded. The first step to devise policies is to understand the distribution and determinants of TBI in the community. The objectives of the study were to estimate the...

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Main Authors: Aparna Mohan, P S Indu, Sanjeev Nair, P S Rakesh, K L Saradadevi, Jyothi Rajahamsan
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2022-01-01
Series:Indian Journal of Community Medicine
Subjects:
Online Access:http://www.ijcm.org.in/article.asp?issn=0970-0218;year=2022;volume=47;issue=4;spage=501;epage=505;aulast=
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author Aparna Mohan
P S Indu
Sanjeev Nair
P S Rakesh
K L Saradadevi
Jyothi Rajahamsan
author_facet Aparna Mohan
P S Indu
Sanjeev Nair
P S Rakesh
K L Saradadevi
Jyothi Rajahamsan
author_sort Aparna Mohan
collection DOAJ
description Background: To achieve the goals of the end tuberculosis (TB) strategy, strategies for management of TB infection (TBI) have to be expanded. The first step to devise policies is to understand the distribution and determinants of TBI in the community. The objectives of the study were to estimate the prevalence of TBI using Interferon Gamma Release Assay (IGRA) and its determinants among the adult population of Thiruvananthapuram district, Kerala. Materials and Methods: A community-based, cross-sectional study using the stratified cluster sampling was carried out among the adults. TBI was detected using IGRA conducted on whole blood sample. Data on determinants were collected using a structured questionnaire by the face-to-face interview. The prevalence of TBI was estimated. Univariate and multivariate analysis was conducted to identify the determinants. Results: Age standardized prevalence of TBI among 396 adults was 20.5% (95% confidence interval [CI] 16.52–24.48). On adjusting for the possible confounders, increasing age (adjusted odds ratio [OR] 1.028; 95% CI 1.008–1.048; P = 0.005), history of contact with active TB disease (adjusted OR 7.61; 95% CI 4.43–13.05; P < 0.001), childhood contact (adjusted OR 8.20; 95% CI 3.14–21.41; P < 0.001), and household contact (adjusted OR 10.12; 95% CI 5.39–18.98; P < 0.001) were found to be the determinants of TBI in this population. Conclusion: The present study observed that nearly one-fifth of the adult population in the Thiruvananthapuram district has TBI. For the programmatic management, factors such as increasing age and contact history may be considered for the elimination of TBI in the state.
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spelling doaj.art-bc83bc1bfaac40b4a6e6467fa212e7242023-01-12T11:31:12ZengWolters Kluwer Medknow PublicationsIndian Journal of Community Medicine0970-02181998-35812022-01-0147450150510.4103/ijcm.ijcm_1322_21Prevalence of tuberculosis infection among adults of thiruvananthapuram district of kerala as measured by interferon gamma release assay – A cross-sectional studyAparna MohanP S InduSanjeev NairP S RakeshK L SaradadeviJyothi RajahamsanBackground: To achieve the goals of the end tuberculosis (TB) strategy, strategies for management of TB infection (TBI) have to be expanded. The first step to devise policies is to understand the distribution and determinants of TBI in the community. The objectives of the study were to estimate the prevalence of TBI using Interferon Gamma Release Assay (IGRA) and its determinants among the adult population of Thiruvananthapuram district, Kerala. Materials and Methods: A community-based, cross-sectional study using the stratified cluster sampling was carried out among the adults. TBI was detected using IGRA conducted on whole blood sample. Data on determinants were collected using a structured questionnaire by the face-to-face interview. The prevalence of TBI was estimated. Univariate and multivariate analysis was conducted to identify the determinants. Results: Age standardized prevalence of TBI among 396 adults was 20.5% (95% confidence interval [CI] 16.52–24.48). On adjusting for the possible confounders, increasing age (adjusted odds ratio [OR] 1.028; 95% CI 1.008–1.048; P = 0.005), history of contact with active TB disease (adjusted OR 7.61; 95% CI 4.43–13.05; P < 0.001), childhood contact (adjusted OR 8.20; 95% CI 3.14–21.41; P < 0.001), and household contact (adjusted OR 10.12; 95% CI 5.39–18.98; P < 0.001) were found to be the determinants of TBI in this population. Conclusion: The present study observed that nearly one-fifth of the adult population in the Thiruvananthapuram district has TBI. For the programmatic management, factors such as increasing age and contact history may be considered for the elimination of TBI in the state.http://www.ijcm.org.in/article.asp?issn=0970-0218;year=2022;volume=47;issue=4;spage=501;epage=505;aulast=keralaprevalencerisk factorstuberculosistuberculosis infection
spellingShingle Aparna Mohan
P S Indu
Sanjeev Nair
P S Rakesh
K L Saradadevi
Jyothi Rajahamsan
Prevalence of tuberculosis infection among adults of thiruvananthapuram district of kerala as measured by interferon gamma release assay – A cross-sectional study
Indian Journal of Community Medicine
kerala
prevalence
risk factors
tuberculosis
tuberculosis infection
title Prevalence of tuberculosis infection among adults of thiruvananthapuram district of kerala as measured by interferon gamma release assay – A cross-sectional study
title_full Prevalence of tuberculosis infection among adults of thiruvananthapuram district of kerala as measured by interferon gamma release assay – A cross-sectional study
title_fullStr Prevalence of tuberculosis infection among adults of thiruvananthapuram district of kerala as measured by interferon gamma release assay – A cross-sectional study
title_full_unstemmed Prevalence of tuberculosis infection among adults of thiruvananthapuram district of kerala as measured by interferon gamma release assay – A cross-sectional study
title_short Prevalence of tuberculosis infection among adults of thiruvananthapuram district of kerala as measured by interferon gamma release assay – A cross-sectional study
title_sort prevalence of tuberculosis infection among adults of thiruvananthapuram district of kerala as measured by interferon gamma release assay a cross sectional study
topic kerala
prevalence
risk factors
tuberculosis
tuberculosis infection
url http://www.ijcm.org.in/article.asp?issn=0970-0218;year=2022;volume=47;issue=4;spage=501;epage=505;aulast=
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