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Table 3 Explanation of risk matrix

From: The impact of a standardized incident reporting system in the perioperative setting: a single center experience on 2,563 ‘near-misses’ and adverse events

Patient consequences

     

Catastrophe

Extreme

Extreme

Extreme

Extreme

Extreme

Very serious

High

High

High

High

High

Serious

High

High

High

Medium

Medium

Marginally serious

High

High

Medium

Medium

Low

None

Medium

Medium

Medium

Low

Low

Risk of recurrence

Almost Inevitable

Probable

Possible

Small

Very small