Table 1 Baseline characteristics
Baseline characteristic | Type | Levels or scale |
|---|---|---|
Sex | Binary | Male; female |
Age | Continuous | Years |
BMI | Continuous | kg/m2 |
Marital status | Categorical | Single; separated; married/civil partner; living with a partner; divorced; widowed |
Ethnicity | Categorical | White; Black Caribbean; Black African; Black other; Indian; Pakistani; Bangladeshi; Chinese; other |
Training post school | Categorical | None; formal work qualification; college/university non-degree; degree from college/university |
Employment status | Categorical | Full-time employed; part-time employed; self-employed; retired/looking after home/inactive; unpaid work; unemployed; full-time student |
Mechanism of injury | Categorical | Low energy fall; high energy fall; road traffic accident; crush injury; contact sports injury; other |
Any other injuries | Binary | Yes; no |
Diagnosed with diabetes | Binary | Yes; no |
Regular smoker | Binary | Yes; no |
Alcohol consumption per week | Categorical | 0–7 units; 8–14 units; 15–21 units; more than 21 units |
Regular analgesia before injury | Binary | Yes; no |
Other medication before injury | Binary | Yes; no |