Skip to main content

Table 3 Concordance rates (kappa statistics) of laboratories with reference center (LAB 1), according to the expression of GGT and ALT activities

From: A prospective assessment of the inter-laboratory variability of biochemical markers of fibrosis (FibroTest) and activity (ActiTest) in patients with chronic liver disease

  Fibrosis stage predicted by FibroTest using IU Fibrosis stage predicted by FibroTest using UNL
  Kappa vs reference center ± se Discordance of more than 1 stage Kappa vs reference center ± se Discordance of more than 1 stage
LAB 2 0.72 ± 0.11 0 0.35 ± 0.11 1
LAB 3 0.78 ± 0.11 0 0.83 ± 0.11 0
LAB 4 0.56 ± 0.11 0 0.36 ± 0.10 0
LAB 5 0.32 ± 0.09 1 0.20 ± 0.10 8
LAB 6 0.94 ± 0.11 0 0.89 ± 0.11 0
LAB 7 0.52 ± 0.10 0 0.48 ± 0.10 1
LAB 10 0.52 ± 0.11 1 0.57 ± 0.10 3
LAB 11 0.44 ± 0.11 1 0.73 ± 0.11 1
  Activity grade predicted by ActiTest using IU Activity grade predicted by ActiTest using UNL
  Kappa vs reference center ± se Discordance of more than 1 stage Kappa vs reference center ± se Discordance of more than 1 stage
LAB 2 0.72 ± 0.12 0 0.32 ± 0.12 2
LAB 3 0.54 ± 0.12 0 0.44 ± 0.12 1
LAB 4 0.88 ± 0.13 0 0.43 ± 0.13 1
LAB 5 0.94 ± 0.13 0 0.56 ± 0.13 0
LAB 6 0.82 ± 0.12 0 0.43 ± 0.13 1
LAB 7 0.82 ± 0.13 0 0.45 ± 0.12 0
LAB 10 0.76 ± 0.13 0 0.38 ± 0.12 0
LAB 11 0.94 ± 0.12 0 0.37 ± 0.12 2
  1. se – standard error