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Table 4 The inter-rater agreement between reviewers in determining definitely versus probably preventable events, by assessment method

From: Methods for evaluating adverse drug event preventability in emergency department patients

Preventability Definition Inter-rater Agreement
Kappa (95% CIs)
Best Practice-Based [4] (n = 869) 0.33 (0.23–0.44)
Error -Based [23] (n = 873) 0.30 (0.20–0.40)
Algorithm-Based [24](n = 930) 0.40 (0.33–0.46)