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Table 2 1st QFT-IT and 2nd QFT-IT test results in 93 ESRD patients

From: Serial interferon-gamma release assays for latent tuberculosis in dialysis patients with end stage renal disease in a Korean population

Dialysis 1st QFT-IT positive (n = 39a) 1st QFT-IT negative (n = 54a) Total Kappa P value
  2nd QFT-IT positive 2nd QFT-IT negative 2nd QFT-IT positive 2nd QFT-IT negative (N) (%)  
HD 18/43 (41.9 %) 1/43 (2.3 %) 1/43 (2.3 %) 23/43 (53.5 %) 43 0.91 (95.3 %) <0.001*
PD 13/50 (26.0 %) 7/50 (14.0 %) 0/50 (0 %) 30/50 (60.0 %) 50 0.69 (86.0 %) <0.001*
Total 31/93 (33.3 %) 8/93 (8.6 %) 1/93 (1.1 %) 53/93 (57.0 %) 93 0.80 (90.3 %) <0.001*
  1. aAmong 93 ESRD patients, 39 patients showed QFT-IT positive results and 54 patients showed QFT-IT negative results on baseline QFT-IT tests, respectively
  2. *Difference for concordance between 1st QFT-IT and 2nd QFT-IT
  3. QFT-IT QuantiFERON-TB Gold In-Tube, PD peritoneal dialysis, HD hemodialysis