Ann Clin Microbiol 2025;28(3):17. Principles and clinical applications of interferon-gamma release assays in latent tuberculosis diagnosis

Table 1. Indeterminate results from QuantiFERON-TB Gold Assays in different populations
AuthorStudy periodRegionSample sizeTarget diseaseIndeterminate rateRisk factor
Ogawa et al. [44]2016–2017Japan118Hemodialysis5.9%Long-term hemodialysis, older age (≥ 60 years)
Edathodu et al. [45]2008–2013Saudi Arabia278ESRD, pre- and post-transplant2.9%Use of immunosuppressants, ESRD
Kim et al. [46]2010–2013South Korea784Kidney and pancreas transplant9.7%Use of immunosuppressants
Stevens et al. [47]2011–2017USA (Georgia)859Pediatric IBDDiagnosis: 10.3%, Treatment: 5.3%High disease activity, malnutrition
Kurti et al. [48]2013–2014Hungary166IBD (Only stable patients included)0.6%Smoking, use of immunosuppressants
Hakimian et al. [49]2008–2016USA (Massachusetts)IBD: 107, RA: 89IBD, RAIBD: 22%, RA: 7%High-dose steroids (≥ 20 mg), elevated ESR/CRP
Weinberg et al. [50]2020Multinational (Africa, Asia, Caribbean)944Pregnant women with HIVPregnancy: 13%, Postpartum: 1%Low CD4+ T-cell count (≤ 350 cells/µL), pregnancy-induced immunosuppression
LaCourse et al. [51]2014–2015Kenya100Pregnant women with HIVPregnancy: 16%, Postpartum: 0%Pregnancy-related immune changes, low CD4+ T-cell count

Abbreviations: ESRD, end-stage renal disease; IBD, inflammatory bowel disease; RA, rheumatoid arthritis; ESR, erythrocyte sedimentation rate; CRP, C-reactive protein; HIV, human immunodeficiency virus.