| Methods |
Randomised controlled trial |
| Participants |
20 individuals with DSM‐IV PTSD (11 women, 9 men) in the UK |
| Interventions |
Meta cognitive therapy (n = 10) vs delayed treatment (n = 10) |
| Outcomes |
PDS, IES, BDI, BAI, TSQ |
| Notes |
Therapist credentials/experience is not reported. Treatment adherence was not formally assessed. |
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Random sequence generation (selection bias) |
Low risk |
Comment: Allocated by a coin toss. |
| Allocation concealment (selection bias) |
Low risk |
Comment: Allocation was performed by an individual otherwise not involved with the study. |
| Incomplete outcome data (attrition bias)
All outcomes |
Low risk |
Comment: ITT analyses were performed. One participant dropped out of the MCT group. |
| Selective reporting (reporting bias) |
Low risk |
Comment: All specified outcomes were reported. |
| Other bias |
High risk |
Comment: Small sample size. |
| 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 |
Comment: The assessor was blind. |
