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Table 4 Kappa value for the intraobserver agreement for gastric mucosa atrophy in each assessor

From: Interobserver and intraobserver agreement for gastric mucosa atrophy

Assessor   All (n = 91) H. pylori-uninfected (n = 24) H. pylori-currently infected (n = 48) H. pylori-past infected (n = 19)
Japanese experienced No. 1 Kappa value 0.801 0.791 0.658 0.826
  (95 % CI) (0.656-0.947) (0.6277-0.9547) (0.410-0.905) (0.496-1.157)
Japanese experienced No. 2 Kappa value 0.585 0.601 0.351 0.521
  (95 % CI) (0.439-0.730) (0.4369-0.7649) (0.122-0.580) (0.201-0.841)
Japanese experienced No. 3 Kappa value 0.871 0.862 0.874 0.906
  (95 % CI) (0.718-1.025) (0.6918-1.0321) (0.591-1.157) (0.533-1.279)
Vietnamese experienced No. 1 Kappa value 0.680 0.625 0.452 0.613
  (95 % CI) (0.530-0.831) (0.225-1.025) (0.180-0.723) (0.222-1.008)
Vietnamese experienced No. 2 Kappa value 0.740 0.630 0.677 0.820
  (95 % CI) (0.589-0.891) (0.230-0.130) (0.465-0.888) (0.484-1.156)
Vietnamese experienced No. 3 Kappa value 0.728 0.495 0.716 0.666
  (95 % CI) (0.581-0.875) (0.095-0.895) (0.481-0.950) (0.353-0.997)
Japanese beginner No. 1 Kappa value 0.664 0.703 0.514 0.501
  (95 % CI) (0.517-0.810) (0.5388-0.8678) (0.294-0.733) (0.170-0.832)
Japanese beginner No. 2 Kappa value 0.429 0.485 0.324 0.195
  (95 % CI) (0.273-0.585) (0.3112-0.6583) (0.110-0.538) (-0.163-0.554)
Japanese beginner No. 3 Kappa value 0.264 0.261 0.261 0.275
  (95 % CI) (0.118-0.410) (0.0961-0.4248) (0.039-0.484) (-0.045-0.596)
Vietnamese beginner No. 1 Kappa value 0.714 0.630 0.753 0.346
  (95 % CI) (0.563-0.866) (0.230-0.130) (0.520-0.986) (0.023-0.669)
Vietnamese beginner No. 2 Kappa value 0.531 0.792 0.575 0.188
  (95 % CI) (0.373-0.688) (0.392-1.192) (0.368-0.781) (-0.170-0.546)
Vietnamese beginner No. 3 Kappa value 0.866 1.000 0.725 1.000
  (95 % CI) (0.720-1.012) (1.000-1.000) (0.508-0.942) (0.674-1.326)