Table 2 Risk of Bias Table for Randomized Controlled Trials According to the Scottish Intercollegiate Guidelines Network (SIGN) Checklist
Author, Year | Research Question | Randomization | Concealment | Blinding (1/2) | Similarity at baseline | Similarity between arms | Outcome measurement | Percent drop-out | Intention to treat | Comparable results between sites |
|---|---|---|---|---|---|---|---|---|---|---|
Lerman S.F. et al. 2017 [43] | Y | Y | Y | N/Y | Y | Y | Y | CBT =30% Control =24% | Y | CS |
McCurry S.M. et al. 2014 [42] | Y | Y | CS | N/Y | Y | CS | Y | CBT-Pain =13.9% CBT-Pain-Insomnia =17.2% Control =7.3% | Y | CS |
Salwen J. et al., 2017 [36] | Y | Y | Y | N/Y | Y | Y | Y | Int: 30% Contr: 24% | Y | N/A |
Smith M.T., et al. 2015 [32] | Y | Y | Y | N/Y | Y | Y | Y | CBT =30% Control =24% | Y | N/A |
Vitiello et al. 2014 [41] | Y | Y | CS | N/Y | Y | CS | Y | CBT-Pain: 3.3% CBT-Pain & Insomnia: 6.6% Control: 0.8% | Y | CS |
Vitiello et al. 2013 [31] | Y | Y | CS | N/Y | Y | CS | Y | CBT-Pain: 9.0% CBT-Pain & Insomnia: 11.4% Control: 2.4% | Y | CS |