Table 3.
Transformation of recidivism reduction estimates to estimate the risk of reoffending.
| Theme | Input | Value (CI) | Source |
|---|---|---|---|
| Strang 2013, all studies | Standard mean difference | −0.185 (−0.285 to −0.085) | Strang et al. (2013) |
| Log rate ratio | −0.336 (−0.517 to −0.154) | Calculated using Cochrane Formula (Higgins and Green, 2011) | |
| Rate ratio | 0.715 (0.596 to 0.857) | Calculated | |
| Strang 2013, restorative justice as a supplement only | Standard mean difference | −0.193 (−0.297 to −0.089) | Strang et al. (2013) |
| Log rate ratio | −0.350 (−0.539 to −0.161) | Calculated using Cochrane Formula (Higgins and Green, 2011) | |
| Rate ratio | 0.705 (0.584 to 0.851) | Calculated | |
| Shapland report | Rate ratio | 0.715 (0.549 to 0.932) | Shapland et al. (2008) |
The reoffending rate implemented in this table is pooled across offence types for illustrative purposes. In the context of the economic model, the method will be applied to each index offence type separately.