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. 2018 Jun 19;68(673):e576–e585. doi: 10.3399/bjgp18X697877

Table 5.

Summary of harm measures and their weighted Cohen’s kappas19

What measured? Scale Modified kappa 95% CI
NES trigger tool Severity 1–4 0.8 (good) 0.65 to 0.95
WHO Severity 1–5 0.58 (moderate) 0.28 to 0.88
Hogan Healey Preventability 1–6 0.50 (moderate) 0.1 to 0.89

NES = NHS Education Scotland. WHO = World Health Organization.