2010 BC Guide in Determining Fitness to Drive

on a convergence of evidence across studies. For some medical conditionsthere is substantial data from well-designed studies that indicate that thepresence of that condition negatively impacts on driving performance. Forother medical conditions, either the available literature is insufficient ormethodological considerations are such that knowledge about the effect ofthe condition on driving performance is limited or unknown.9.3 Source of the medical condition guidelinesThe medical condition guidelines were drafted by OSMV, with review andinput from a variety of experts and stakeholders. Appendix 5 providesfurther details of the drafting and approval process. Wherever possible,OSMV has incorporated current driver fitness research into the medicalcondition guidelines to ensure that they are based on the best evidencepossible. Nonetheless, because of the paucity of evidence for manymedical conditions, reliance on expert opinion is a necessary componentof the medical condition guidelines.80