Results
The descriptive findings are summarized in Table 1. The study involved 598 subjects, 208 cases and 390
control cases. The distribution per country shows that the majority of cases was collected by Italy, Greece, followed by
Turkey; controls were collected mostly by Italy and Germany, followed by Turkey. The majority of riders was man
both among controls and cases, the female riders accounted only for 12.4% in the all dataset. Cases are older than
controls: the percentage of people aged 25 years or older is 82.7% among cases and 72.2% among controls. Overall, the
proportion of overweight or obese subjects is 47.1% and the proportion of people with vision defects is 31.3%. The data
clearly indicate that riders who have had a previous accident are over represented in the accident population (80.0%
versus 40.6%). The percentage of riders who drove a vehicle with engine size ≤125 cc is 38.2% and the jet helmet is
slightly more frequent among the cases (42.4% versus 34.3%).