Table 1Relative hazard matrix used for transposing qualitative frequency and severity into numerical values

Severity(s)Probability of occurrence
RemoteUncommonOccasionalFrequent
Minimal0.010.020.241
Mild0.030.101.205
Moderate0.100.404.8020
Severe0.502.0024.00100

From: Building Self-Empowered Teams for Improving Safety in Postoperative Pain Management

Cover of Advances in Patient Safety: New Directions and Alternative Approaches (Vol. 3: Performance and Tools)
Advances in Patient Safety: New Directions and Alternative Approaches (Vol. 3: Performance and Tools).
Henriksen K, Battles JB, Keyes MA, et al., editors.

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