Thorgrimsen 2002.

Methods	RCT.
Participants	11 community‐dwelling dyads (11 people with dementia and their carers) who had been referred to a RYCT reminiscence group by community psychiatric nurses and occupational therapists. No other diagnostic information specified. Mean age of person with dementia: 76.3 years.
Interventions	Intervention: joint reminiscence groups for the person with dementia and their carers. Control: no treatment.
Outcomes	Quality of life: QoL‐AD. Cognitive: MMSE. Communication: Holden Communication Scale. Behavioural: CAPE‐BRS. Carer: GHQ‐12, Relatives Stress Scale.
Length and frequency of intervention	Programme comprised 18 weekly reminiscence sessions, 11 of which were attended only by the informal carers and the volunteers involved in the project.
Time points measured	Baseline and 1 follow‐up 18 weeks postbaseline assessment.
Number of participants who did not complete study	2/22 (9.09%), i.e. 1 dyad.
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Participants were randomised to the intervention and control groups using sealed envelopes.
Allocation concealment (selection bias)	Low risk	Used sealed envelopes.
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Assessor blind to group allocation. Participants were informed about the importance of the assessor being blind with respect to group allocation.
Incomplete outcome data (attrition bias) All outcomes	Low risk	Data excluded for missing dyad. Dropout due to ill health of person with dementia.
Selective reporting (reporting bias)	Low risk	All outcomes listed in the methods section were reported and there was no evidence of selective outcome reporting.
Other bias	Low risk	n/a.
Availability of training and supervision Objective outcome measures	Low risk	Age Exchange (internationally known for its work in all areas of reminiscence) conducted the intervention. Carers were taught the applications of reminiscence by Age Exchange in 11 weekly sessions.
Availability of manual or protocol for intervention All outcomes	Low risk	Intervention was the RYCT programme, based on the standardised manual Reminiscing with People with Dementia ‐ a Handbook for Carers (Bruce 1999).