Table 2

Causes of incidents and analysis of risk factors with regard to inpatient admission and TBI

Causes of incidentLoss of control/balance141 (57%)
Hurt themselves at E-scooter27 (11%)
Tram tracks20 (8%)
Hit an object18 (7%)
Hit by motorised vehicle12 (5%)
During braking12 (5%)
Hit by E-scooter9 (4%)
Tandem driving5 (2%)
Trip over3 (1%)
Twisted ankle while getting off1 (<1%)
Wearing a helmetYes3 (1%)Inpatient, n=2Not applicable due to small patient numbers
TBI, n=1
Alcohol consumptionYes48 (20%)Inpatient, n=18OR 2.1, 95% CI: 1.1 to 4.0p=0.033
TBI, n=15OR 5.2, 95% CI: 2.3 to 11.6p<0.001
Driving licence*Yes82 (68%)Inpatient, n=17OR 0.9, 95% CI: 0.4 to 2.5p=0.968
TBI, n=9OR 0.7, 95% CI: 0.2 to 2.0p=0.458
Previous experience*Yes58 (48%)Inpatient, n=15OR 1.6, 95% CI: 0.7 to 3.8p=0.302
1–3 times15 (12%)
3–5 times7 (6%)
>5 times36 (30%)TBI, n=11OR 3.3, 95% CI: 0.9 to 11.2p=0.042
  • Values as numbers and percentage.

  • Inpatient=inpatient admission.

  • *Referring to voluntary questionnaire (n=120).

  • TBI, traumatic brain injury.