Table 4 ED intervention at club 2. Comparison of assaults in club 2 before and after ED intervention and with seven other “hotspot” venues.
| Capacity | Assaults in first (preintervention) period | Assaults in second (intervention) period | Total assaults | Event ratio | 95% CI | |
|---|---|---|---|---|---|---|
| Club 2* | 1300 | 27 | 15 | 42 | 0.56 | 0.30 to 1.03 |
| Club Z | 1970 | 23 | 35 | 58 | 1.52 | 0.90 to 2.56 |
| Club B | 400 | 17 | 19 | 36 | 1.12 | 0.59 to 2.13 |
| Club V | 1500 | 8 | 4 | 12 | 0.50 | 0.16 to 1.56 |
| Club R | 400 | 12 | 8 | 20 | 0.67 | 0.28 to 1.59 |
| Club S1 | 6000 | 13 | 6 | 19 | 0.46 | 0.18 to 1.17 |
| Club E | 380 | 9 | 5 | 14 | 0.56 | 0.20 to 1.58 |
| Club D | 910 | 9 | 4 | 13 | 0.44 | 0.15 to 1.36 |
| All others† | 91 | 81 | 172 | 0.89 | 0.66 to 1.20 |
95% CI used throughout (z = 1.96).
*Club 2 was subject only to low level police intervention.
†Club 2 versus all other clubs pooled.