One-way sensitivity analyses, NSZs versus no intervention
| Parameters | Incremental cost (2016 US$) | Incremental QALY | ||
| Low | High | Low | High | |
| Productivity loss due to fatal injuries (low: −30%; high: +30%) | −10 | −19 | 0.002 | 0.002 |
| % Case fatality ratio of traffic injury (low: −30%; high: +30%) | −10 | −19 | 0.002 | 0.002 |
| Utility loss due to serious traffic injury (low: −30%; high: +30%) | −15 | −15 | 0.002 | 0.003 |
| % Traffic injury in NSZs (low: −30%; high: +30%) | −9 | −20 | 0.002 | 0.003 |
| % Traffic injury reduction in the NSZs (low: −30%; high: +30%) | −9 | −20 | 0.002 | 0.003 |
NSZ, neighbourhood slow zone; QALY, quality-adjusted life year.