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KMID : 1120220140050000030
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Osong Public Health and Research Perspectives
2014 Volume.5 No. 0 p.30 ~ p.36
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Results of Tuberculosis Contact Investigation in Congregate Settings in Korea, 2013
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Kwon Yun-Hyung
Kim So-Jung
Kim Ji-Eun
Kim Seol-Yi
Song Eun-Mi
Lee Eun-Jung
Choi Yun
Kim Ye-Jin
Lim Byoung-Ok
Kim Da-Sul
Choi Duk-Sun
Kim Hye-Sung
Park Ji-Eun
Yun Ji-Eun
Park Jin-A.
Jung Jong-Rak
Kim Joo-Kyoung
Kang Sang-Hee
Hong Seo-Yean
Lee Seung-Jae
Park Soo-Jin
Park Sun-Hwa
Yoon Sun-Hye
Kim Yoon-Sun
Choi Yun-Jeong
Seo Yun-Jeong
Seo Yul-A
Park Ji-Seon
Sung Min-Hee
Shin Min-Jang
Son Hyun-Jin
Lee Yeon-Kyeng
Go Un-Yeong
Kwon Geun-Yong
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Abstract
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Objectives: This study aimed to check the status of the contact investigation in congregate settings to eradicate tuberculosis (TB) in the Republic of Korea.
Methods: The “Integrated System for Disease and Public Health Management” is used for care and follow-up for patients and contacts of TB. We downloaded data for contact investigations conducted from January to December 2013.
Results: A total of 1,200 contact investigations in congregate settings were carried out by 25 field investigators in 2013. We performed the status of contact investigation, TB, and LTBI rate by age, accept rate of LTBI treatment, and complete rate of LTBI treatment during 2013. A total of 1,547 index TB patients, 149,166 contacts, and 259 additional TB patients were found through the investigation. Kindergartens showed the highest LTBI rate, 19.8%, among educational facilities. The second highest was in elementary schools and the subtotal LTBI rate of educational facilities was 7.8%. Social welfare/correctional facilities and workplaces showed relatively high LTBI rates of 23.8% and 23.6%, respectively. By age, individuals >35 years showed the highest LTBI rate, followed by those aged 0?4 years, 30?34 years, and 5?9 years, with rates of 18.1%, 16.4%, and 15.4% respectively. When comparing the tuberculin skin test (TST) positive conversion ratio by facility, middle school and high school were relatively high compared to the others. The accept rate of LTBI treatment in the workplace was lowest at 63% and the complete rate in elementary schools was lowest at 76.5%.
Conclusion: TB contact investigation is considered as a meaningful strategy for preventing TB outbreaks in congregate settings and decreasing the prevalence of TB in young people. Results of this study could be used to establish the LTBI management policy.
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KEYWORD
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interferon-gamma release tests, latent tuberculosis, tuberculin test, tuberculosis
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