Figure 1
From: Systematic screening for unsafe driving due to medical conditions: Still debatable
Natural history and impact of a medical condition on road safety, with and without screening. Is1 to Is4 are indicators of severity, Fms is a potential modifier of the indicators of severity; Ipe1 and Ipe2 are indicators of potential expected positive effects of the early intervention; Ine1 to Ine5 are indicators of potential expected negative effects of the early intervention; Ip1 to Ip3 are indicators of performance of screening tools required to detect unsafe driving (see text for details).