Table 4 The inter-rater reliability among 14 pharmacists for three sets of prescriptions compared using Cohen’s Kappa statistics after combining confusing criteria

 Before combination

0.61 (0.54–0.67)

0.63 (0.59–0.74)

0.59 (0.48–0.65)

 After combination

0.63 (0.57–0.70)*

0.63 (0.61–0.76)

0.59 (0.50–0.67)

 Before combination

0.66 (0.55–0.75)

0.75 (0.62–0.81)

0.64 (0.46–0.71)

 After combination

0.68 (0.57–0.75)*

0.75 (0.64–0.84)

0.64 (0.52–0.71)

 Before combination

0.80 (0.74–0.87) ∆, #

0.86 (0.75–0.88) ∆

0.75 (0.73–0.86) ∆, #

 After combination

0.80 (0.74–0.89) ∆, #

0.86 (0.77–0.89) ∆

0.75 (0.73–0.86) ∆, #