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Table 2 Cohen’s kappa agreement coefficient and P value among the examiners (A, B and C) for tear crystallization of cats according to Rolando and Masmali scales

From: The use of tear ferning test in cats for evaluation of ocular surface

ExaminerExaminerRolando scaleMasmali scale
kP-valuekP-value
AB0.038a0.615*0.141b0.038
AC0.17b0.0180.199b0.004
BC0.537c< 0.0010.617d0
  1. a poor correlation; b slight correlation; c moderate correlation; d strong correlation; * P > 0.05, therefore not significant