ICERs ($/QALY) from speed-related death according to traffic speed before (range 5–40 mph) and after (range 5–40 mph) a speed change programme
| Speed versus ICER | Speed before speed change programme (mph) | ||||||||
| 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | ||
| Speed after speed change programme (mph) | 5 | No change | Dominant | ||||||
| 10 | |||||||||
| 15 | Dominated | No change | Dominant | ||||||
| 20 | Dominated | No change | Dominant | 207 | |||||
| 25 | Dominated | No change | Dominant | 449 | 711 | ||||
| 30 | Dominated | No change | 1075 | 1082 | |||||
| 35 | 449 | 1075 | No change | 1088 | |||||
| 40 | 207 | 711 | 1082 | 1088 | No change | ||||
ICER, incremental cost-effectiveness ratio; QALY, quality -adjusted life year.