Abstract:
:Limited information is available on the risk factors for false-negative results with the new generation of QuantiFERON-TB Gold In-Tube (QFT-GIT) tests in non-HIV-infected patients with tuberculosis (TB). We sought to identify risk factors for false-negative QFT-GIT results in culture-confirmed TB patients. We reviewed the microbiological, laboratory, radiographic, and clinical data of 362 patients with positive M. tuberculosis cultures who received QFT-GIT tests at a Korean tertiary hospital between September 2006 and March 2010. Of these, 311 (85.9%) had true-positive and 51 (14.1%) had false-negative results. The false-negative group was more likely to have immunosuppressant diseases and lower platelet, protein, and albumin levels than the true-positive group. An immunosuppressive condition was an independent risk factor for false-negative QFT-GIT results in non-HIV-infected patients with active TB (odds ratio, 2.98; 95% confidence interval, 1.38-6.47; P = .006). Careful interpretation of negative QFT-GIT results is thus necessary in immunocompromised patients suspected of having active TB.
journal_name
Diagn Microbiol Infect Disjournal_title
Diagnostic microbiology and infectious diseaseauthors
Kim EY,Park MS,Kim YS,Kim SK,Chang J,Kang YAdoi
10.1016/j.diagmicrobio.2011.02.011subject
Has Abstractpub_date
2011-07-01 00:00:00pages
324-9issue
3eissn
0732-8893issn
1879-0070pii
S0732-8893(11)00094-0journal_volume
70pub_type
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