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Table 4 Assessment of strength (κ) and consistency (McNemar’s Test) of agreement of T-Track® CMV results with QuantiFERON®-CMV and iTAg™ MHC Tetramers results

From: Validation of T-Track® CMV to assess the functionality of cytomegalovirus-reactive cell-mediated immunity in hemodialysis patients

Test 1 Test 2 κ 95% CI McNemar
T-Track® CMV QuantiFERON®-CMV 0.445 0.289–0.601 0.009
T-Track® CMV iTAg™ MHC Tetramers 0.434 0.264–0.604 0.008
  1. According to Altman, kappa (κ) values between 0.4 and 0.6 refer to moderate agreement. Consistency was evaluated by comparing the number of discordant results using the McNemar’s Test (p < 0.05 was considered statistically significant). Of note, assessment does not take into consideration indeterminate results of the QuantiFERON®-CMV assay. CI confidence interval