Test variability of the QuantiFERON-TB gold in-tube assay in clinical practice.

@article{Metcalfe2013TestVO,
  title={Test variability of the QuantiFERON-TB gold in-tube assay in clinical practice.},
  author={John Z. Metcalfe and Adithya Cattamanchi and Charles E Mcculloch and Justin D. Lew and Ngan P. Ha and Edward A. Graviss},
  journal={American journal of respiratory and critical care medicine},
  year={2013},
  volume={187 2},
  pages={206-11}
}
RATIONALE Although IFN-γ release assays (IGRAs) are widely used to screen for Mycobacterium tuberculosis infection in high-income countries, published data on repeatability are limited. OBJECTIVES To determine IGRA repeatability. METHODS The study population included consecutive patients referred to The Methodist Hospital (Houston, TX) between August 1, 2010 and July 31, 2011 for latent tuberculosis (TB) infection screening with an IGRA (QuantiFERON-TB Gold In-Tube; Cellestis, Carnegie… CONTINUE READING
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