Table 3 Comparator details for each study in the evidence base (N = 267)
Comparator details | No. of studies |
|---|---|
No intervention | 1 |
No intervention and alternative intervention | 68 |
No intervention and different level of intervention | 51 |
Different level of intervention | 18 |
Alternative intervention | 13 |
Different level of intervention and alternative intervention | 3 |
No intervention, different level of intervention, and alternative intervention | 9 |