Särkämö 2013.

Methods	RCT.
Participants	89 participants with mild‐to‐moderate dementia (assessed using CDR) recruited as person with dementia ‐ carer dyads from day units and inpatient facilities in Finland. Of these, 59 dyads belonged to groups relevant to the current study. Mean age: 78.91 years.
Interventions	Intervention: music listening and reminiscing in a group setting. Control: care as usual.
Outcomes	Quality of life: QoL‐AD and Cornell‐Brown Scale for Quality of Life in Dementia. Cognitive: MMSE, Frontal Assessment Battery and Modified Version of the Autobiographical Fluency Task. Carer: ZBI, GHQ‐12.
Length and frequency of intervention	1.5 hours per week for 10 weeks.
Time points measured	Baseline, postintervention (3 months from baseline) and 9 months postbaseline.
Number of participants who did not complete study	9/57 (13.56%).
Notes	Study also contained a singing coaching group (27 dyads). Data from these participants were not included in the current review.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Block randomisation carried out by a blinded staff member using a random number generator.
Allocation concealment (selection bias)	Low risk	An independent researcher was responsible for sequence generation and group allocation.
Blinding of outcome assessment (detection bias) All outcomes	Low risk	All assessments were carried out blinded to the group allocation of the participants.
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	2 participants dropped out from the intervention group and 7 from the control group. Reasons for withdrawals were not given. Authors analysed the data with the remaining participants. There were no statistically significant differences between participants who completed the study and who dropped out.
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	Paper reported that sessions were led by a trained music therapist.
Availability of manual or protocol for intervention All outcomes	Low risk	The paper detailed each session clearly.