Power 2002.

Methods	Randomised controlled trial
Participants	105 outpatients with DSM‐IV PTSD. Various traumas (gender of those starting the study unclear)
Interventions	10 x 90‐minute weekly sessions of EMDR (n = 39) vs exposure plus cognitive restructuring (n = 37) vs waitlist (n = 29) (all interventions included in meta‐analyses).
Outcomes	CAPS, HAM‐A, MADRS
Notes	Experienced therapists delivered therapy, and treatment adherence was assessed.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Quote: "Following completion of the entire initial assessment, for those patients who met entry criteria, the blind assessor then opened a sealed envelope that informed as to which group patients were to be allocated."
Allocation concealment (selection bias)	Low risk	Quote: "Following completion of the entire initial assessment, for those patients who met entry criteria, the blind assessor then opened a sealed envelope that informed as to which group patients were to be allocated."
Incomplete outcome data (attrition bias) All outcomes	High risk	Quote: "Comparison between the 33 drop‐outs and the 72 completers regarding presentation at time of initial assessment produced no significant differences on any of the demographic characteristics or treatment outcome measures with the sole exception of a higher frequency score on the CAPS‐C Avoidance subscale for the drop‐outs t D 2.2, df D 103, p < 0.05. Subsequent analysis was conducted on the 72 completers." Comment: There were 12 drop‐outs from EMDR, 16 from EMDR plus cognitive restructuring and 5 from the waiting list. Reasons for drop‐out were not fully reported.
Selective reporting (reporting bias)	Low risk	Comment: All specified outcomes were reported.
Other bias	Low risk	Comment: no other sources of bias detected.
Blinding of participants and personnel (performance bias) All outcomes	High risk	Comment: Participants were aware of their allocation.
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Quote: "However, assessment at entry, end‐point and follow‐up were conducted by ‘blind’ assessors."