Interferon-gamma release assays and childhood tuberculosis: systematic review and meta-analysis [Review article].

نویسندگان

  • A M Mandalakas
  • A K Detjen
  • A C Hesseling
  • A Benedetti
  • D Menzies
چکیده

BACKGROUND Children infected with Mycobacterium tuberculosis have significant risk of developing tuberculosis (TB) and can therefore benefit from preventive therapy. OBJECTIVE To assess the value of interferon-gamma release assays (IGRAs) and the tuberculin skin test (TST) in the diagnosis of TB infection and disease in children. METHODS Thirty-three studies were included, assessing commercial IGRAs (QuantiFERON®-TB [QFT] and T-SPOT.®TB) and TST. Reference standards for infection were incident TB or TB exposure. Test performance for disease diagnosis was evaluated in studies assessing children with confirmed and/or clinically diagnosed TB, compared to children where TB was excluded. RESULTS Two small studies measured incident TB in children tested with QFT and found weak positive predictive value. Association of test response with exposure-categorized dichotomously or as a gradient-was similar for all tests. The sensitivity and specificity of all tests were similar in diagnosing the disease. Stratified analysis suggested lower sensitivity for all tests in young or human immunodeficiency virus infected children. CONCLUSIONS Available data suggest that TST and IGRAs have similar accuracy for the detection of TB infection or the diagnosis of disease in children. Heterogeneous methodology limited the comparability of studies and the interpretation of results. A rigorous, standardized approach to evaluate TB diagnostic tests in children is needed.

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عنوان ژورنال:
  • The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease

دوره 15 8  شماره 

صفحات  -

تاریخ انتشار 2011