Table of Contents

3.1.2 Evidence of crash risk

There is little concurrence among the findings of studies on diabetes and crash risk, largely due to the methodological problems that arise in these studies (refer to Part A section 1.5 Development and evidence base). The potential effects of hypoglycaemia are of most concern to road safety, but this has been addressed in few studies.1 However, findings point to a higher risk among those with a history of severe hypoglycaemia.2 There is also evidence that ‘tighter control’, as measured by the HbA1c, may be associated with increased crash risk.3