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KMID : 1044520190820030194
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Tuberculosis and Respiratory Diseases
2019 Volume.82 No. 3 p.194 ~ p.200
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A Pilot Project of Systematic Tuberculosis Screening in the Elderly in a South Korean Province
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Kim Hyun-Woo
Kim Hee-JIn
Oh Kyung-Hyun
Oh Hwan-Wook
Choi Hong-Jo
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Abstract
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Background: Tuberculosis (TB) is a major infectious disease in South Korea causing substantial disease burden, particularly in the elderly. This study aimed to identify the case detection rate of mobile TB screening for the elderly conducted in the Jeollanam-do region and to analyze risk factors of active TB.
Methods: We screened the elderly population (≥65 years old) in Jeollanam-do from August to December 2017. Chest radiography was performed for all participants. Participants with TB presumptive signs were asked to submit sputum specimen(s). Sputum smear, culture, and polymerase chain reaction analyses were performed. Cascade analysis, chi-squared tests, and Fisher exact tests were used to evaluate screening performance.
Results: In total, 12,402 participants were screened, and 211 (1.7%) were suspected to have active TB; 181 of the suspected patients (85.8%) underwent sputum smear test, and 16 (8.8%) patients were confirmed to have TB. The TB prevalence among the elderly was bacteriologically confirmed to be 129 per 100,000 individuals, which was similar to national TB notification data for the same age groups. The proportion of active TB cases increased with age, and differed based on sex and past TB history. However, TB-related symptoms, comorbidity status, and TB screening history within 12 months were not predictive of active TB.
Conclusion: This study identified that the prevalence rate was similar to national TB notification data from the same age groups. Periodic, community-based, systematic TB screening among the elderly population is recommended.
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KEYWORD
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Tuberculosis, Thorax, Radiography, Pilot Projects, Mass Screening, Asian Continental Ancestry Group, Aged
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