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Table 5 Potential preventability criteria

From: Evaluating processes of care and outcomes of children in hospital (EPOCH): study protocol for a randomized controlled trial

Rating Category
1 Virtually no evidence of preventability
2 Slight-to-modest evidence of preventability
3 Preventability not quite likely (less than 50/50, but “close call”)
4 Preventability more than likely (more than 50/50, but “close call”)
5 Strong evidence of preventability
6 Virtually certain evidence of preventability
  1. Criteria used to determine potential preventability in EPOCH. These criteria were used in the Canadian Adverse Events Study. A rating of 4 or more will be regarded as a high degree of preventability. Potentially preventable cardiac arrests will be presented as rate per thousand patient-days.