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Table 3 The inter-rater agreement between reviewers determining definitely and probably preventable events versus non-preventable events, by assessment method

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

Preventability Assessment Inter-rater agreement
Kappa (95% CIs)
n = 1356
Best Practice-Based [4] 0.53 (0.48–0.59)
Error -Based [23] 0.55 (0.50–0.60)
Algorithm-Based [24] 0.55 (0.49–0.60)