Checklist questions | Study 8 (Wheeler et al. 2013) [79] | Study 9 (Sassen et al. 2014) [52] | Study 10 (Ruiz et al. 2006) [54] |
---|---|---|---|
1. Was the assignment to treatment groups random? | √ | √ | X |
2. Were participants blinded to treatment allocation? | Unclear | Unclear | X |
3. Was allocation to treatment groups concealed from the allocator? | Unclear | √ | Unclear |
4. Were the outcomes of people who withdrew described and included in the analysis? | Unclear | √ | X |
5. Were those assessing outcomes blind to the treatment allocation? | Unclear | Unclear | X |
6. Were the control and treatment groups comparable at entry? | √ | √ | X |
7. Were groups treated identically other than for the named interventions? | √ | √ | Unclear |
8. Were outcomes measured in the same way for all groups? | √ | √ | Unclear |
9. Were outcomes measured in a reliable way? | √ | √ | √ |
10. Was there adequate follow-up (>80%) | X | √ | X |
11. Was appropriate statistical analysis used? | √ | √ | √ |