Age group specific parameters used in the model
| Age 5–12 | Age 13–18 | Adults | |
|---|---|---|---|
| *Mean hospital treatment costs for non-head injured cyclists: $1919 5–12 years, $2909 13–18 years, and $2849 adults. | |||
| †Percentage ≥7 days stay (non-head injured cyclists): 16.2% 5–12 years, 19.8% 13–18 years, and 25.3% adults. | |||
| Number of cyclists (1993) | 85702 | 202985 | 596808 |
| Helmet wearing rate in September 1993 (%) | 86.8 | 55.9 | 38.9 |
| Helmet wearing rate in March 1994 (%) | 98.6 | 97.1 | 92.9 |
| Mean hospital treatment costs for cyclists head injuries ($)* | 1569 | 1607 | 1351 |
| Mean hospital stay in head injured cyclists (bed days)† | 2.8 | 3.2 | 4.2 |
| ≥7 days stay in head injured cyclists (%) | 6.4 | 7.1 | 10.7 |