Table 5. Relative differences in rates of problem outcomes by South and North sites (significant effects only).
| South site | North site | ||||
|---|---|---|---|---|---|
| Annual | Percent | Percent | |||
| Outcome | ratea | change | Savingsb | change | Savingsb |
| Police incident reports | |||||
| Assault | 8.796 | -3.9%c | 0.34 | -36.5% | 3.21 |
| Emergency medical services | |||||
| Aggregate outcomes | 12.864 | -33.7% | 4.34 | – | – |
| Assault | 4.428 | – | – | -37.4% | 1.66 |
| Motor vehicle accidents | 6.864 | -33.4% | 2.29 | – | – |
| Alcohol and other drugs | 1.056 | -47.7% | .50 | – | – |
a
Base rates established pre-intervention per 1,000 population per year
b
savings calculated per 1,000 population per year
c
anomalous finding for South site; significant chi-square test due to positive enforcement pulse at beginning of South intervention.