Clinical Trial: Latent Tuberculosis Infection in Korean Health Care Workers

Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Interventional

Official Title: Latent Tuberculosis Infection in Korean Health Care Workers Using Interferon Gamma Releasing Assay

Brief Summary: The investigators aim to study the prevalence of latent tuberculosis infection (LTBI) using whole-blood interferon-r release assays, and determine the risk factors of LTBI in Korean health care workers.

Detailed Summary: Further study details as provided by Hanyang University Hospital
Sponsor: Hanyang University

Current Primary Outcome: Percentage of latent tuberculosis infection developed in Korean health care workers [ Time Frame: Three months ]

The participants performed QuaniFERON-TB Gold In-Tube test (QFT-IT test) and blood sampling at enrollment. So, the length of time which from the start of the first test of very first participants to the end of test of very last participant is 3 months. The percentage of participants with LTBI in health care workers was evaluated.


Original Primary Outcome: Same as current

Current Secondary Outcome: Annual incidence of latent tuberculosis infection in Korean health care workers [ Time Frame: 1 year after first QFT-IT test (12-15 months) ]

QFT-IT test was performed at enrollment and repeated at point of one year after enrollment. So, the length of time which from the start of the first test of very first participants to the end of the second test of very last participant is 12 to 15 months. The percentage of participants with positive conversion in follow-up QFT-IT test (second test) was evaluated in participants who had negative results in the first QFT-IT test. Annual infection of LTBI was evaluated with the conversion of QFT-IT test through annual check up of QFT-IT test.


Original Secondary Outcome: Same as current

Information By: Hanyang University

Dates:
Date Received: December 17, 2016
Date Started: December 2016
Date Completion: December 2017
Last Updated: January 3, 2017
Last Verified: January 2017