Figure 4.

The annual risk of harm to other road users (y-axis) in primary (A) and secondary (B) prevention implantable cardioverter defibrillator patients based on the cumulative incidence of inappropriate shocks is illustrated. Risk of harm (solid lines) is calculated in the months (x-axis) following implantation or inappropriate shock. The horizontal dotted line represents the cut-off value for the accepted level of risk of harm (5 per 100 000). Blue and red dotted lines represent the range of the risk of harm, based on the confidence interval of the cumulative incidence for inappropriate shocks. In primary prevention implantable cardioverter defibrillator patients (A), driving is acceptable directly following implantation (blue line) as well as directly following inappropriate shock (red line). Similar results were found in secondary prevention implantable cardioverter defibrillator patients (B), where driving is again acceptable directly following implantation (blue line) as well as directly following inappropriate shock (red line).