Data collected at baseline and follow-up
| Baseline (face-to-face) | |
| Sociodemographic | Age, sex, place of birth, primary language, education, marital status |
| Employment | Employment status, occupation, household income |
| Health | BMI (height and weight), history of chronic illness |
| Lifestyle habits | Smoking status and alcohol consumption |
| Circumstances of crash | Road user type, role of the injured and use of any preventive measure such as helmet or seatbelt, road type, time of the day |
| Quality of life, disability and functioning | Likert scale for overall health, PedsQL, EQ-5D-3L, 4 weeks prior to crash and at baseline. History of any disability, WHODAS II (12-item version). GOSE and KOSCHI |
| Injury | Type of injury and associated hospitalisation, AIS score |
| Work | Return to work, modified duties, hours |
| Cost | Direct and indirect costs such as medical costs, drugs, diagnostics, transportation, legal costs, property damage and compensation. Separate assessment of health system costs will be undertaken |
| 1, 2, 4 and 12 months follow-up (telephone interviews) | |
| Health-related quality of life | Likert scale for overall health, EQ-5D-3L and SF-12. |
| Healthcare utilisation | Days of hospitalisation, rehabilitation and home care |
| Quality of life, disability and functioning | Likert scale for overall health, PedsQL, EQ-5D-3L, 4 weeks prior to crash and at baseline. History of any disability, WHODAS II (12-item version). GOSE and KOSCHI. |
| Disability and functioning | History of any disability, WHODAS II |
| Cost | Direct and indirect costs such as medical costs, drugs, diagnostics, transportation, legal costs, property damage and compensation |
| Social impact at 12 months follow-up (10% of the sample) | |
| In-depth interview | Exploring issues related to access to healthcare, impact on carer, insurance, advice seeking (health and compensation), social life, impact on work, perception of recovery, impact of injury general view |
AIS, Abbreviated Injury Scale; BMI, body mass index; EQ-5D-3L, EuroQol five-dimension three-level version; GOSE, Glasgow Outcome Scale—Extended; KOSCHI, King's Outcome Scale for Childhood Head Injury; PedsQL, Pediatric Quality of Life Inventory; SF-12, Short Form-12; WHODAS II, WHO Disability Assessment Schedule 2.0.