Yamagami 2012.

Methods	RCT.
Participants	54 participants from 4 residential care homes in Japan with a diagnosis of dementia. Mean age: 85.2 years.
Interventions	Intervention: group RT. Group: no treatment.
Outcomes	Cognitive: CDR‐SB, Hasegawa Dementia Scale Revised. Communication: MOSES (Withdrawal subscale). Behavioural: MOSES (Irritability subscale). Mood‐related outcomes: MOSES (Depression subscale).
Length and frequency of intervention	1 hour, twice per week, for 12 weeks.
Time points measured	Paper described, "before test and after test."
Number of participants who did not complete study	1/54 (1.85%).
Notes	Paper reported intervention "Brain Activating Rehabilitation" but inspection of paper indicates that this was mainly reminiscence activities).
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Participants were randomly allocated to conditions, stratifying for severity of dementia. No further details.
Allocation concealment (selection bias)	Unclear risk	No details.
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Paper reported, "care staff who did not participate in the intervention primarily evaluated participants."
Incomplete outcome data (attrition bias) All outcomes	Low risk	1 participant dropped out of the control group due to sickness. Analysis carried out with 53 remaining participants.
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 staff of each residential care home had studied the principles of the intervention and received 4 hours training. After each session of the intervention, an evaluation meeting was held to improve the skills of the staff.
Availability of manual or protocol for intervention All outcomes	Low risk	No evidence of a manual although a clear structure was described in paper.

AD: Alzheimer's disease; ADAS‐Cog: Alzheimer’s Disease Assessment Scale for Cognition; ADCS‐ADL: Alzheimer’s Disease Cooperative Study ‐ Activities of Daily Living; ADDTC: Alzheimer's Disease Diagnostic and Treatment Centers; ADL: activities of daily living; AES‐C: Apathy Evaluation Scale ‐ Clinician; AGGIR: Grille d'Autonomie Gérontologique Groups Iso‐Ressources; AMI: Autobiographical Memory Interview; AMI‐E: Autobiographical Memory Interview Extended Version; AMS: Alzheimer's Mood Scale; BADLS: Bristol Activities of Daily Living Scale; BRSE: Brief Retirement Self‐Efficacy; CAPE: Clifton Assessment Procedures for the Elderly; CASI: Cognitive Abilities Screening Instrument; CDR: Clinical Dementia Rating; CDR‐SB: Clinical Dementia Rating ‐ Sum of Boxes; CES‐D: Center for Epidemiological Studies ‐ Depression; COPE‐PAC: a multidimensional coping inventory; COS: Communication Observation Scale; CSDD: Cornell Scale for Depression in Dementia; CT: computer tomography; DAD: Disablement Assessment for Dementia; DEMQOL: a self‐reported outcome measure designed to enable the assessment health‐related quality of life of people with dementia; DSM‐IV: Diagnostic and Statistical Manual of Mental Disorders ‐ fourth edition; DSM‐IV‐TR: Diagnostic and Statistical Manual of Mental Disorders ‐ fourth edition, Text Revision; EQ‐5D: European Quality of Life 5 Dimensions; FIM: Functional Independence Measure; GDS: Geriatric Depression Scale; GDS‐SF: Geriatric Depression Scale ‐ Short Form; GHQ‐12: 12‐item General Health Questionnaire; HADS: Hospital Anxiety and Depression Scale; ICC: intraclass correlation coefficient; ITT: intention to treat; LSB: life story book; MADRS: Montgomery‐Åsberg Depression Rating Scale; MBS: Memory and Behaviour Problems; MCI: mild cognitive impairment; MMSE: Mini‐Mental State Examination; MOSES: Multidimensional Observation Scale for Elderly Subjects; MRI: magnetic resonance imaging; n/a: not available; NPI: Neuropsychiatric Inventory; NPI‐D: Neuropsychiatric Inventory ‐ Caregiver Distress; PANAS: Positive and Negative Affect Schedule; PET: positron emission tomography; PGI: Patient Global Impression; QCPR: Quality of Carer and Patient Relationship; QoL‐AD: Quality of Life in Alzheimer's Disease; RAID: Rating Anxiety In Dementia; RCT: randomised controlled trial; ROI: return on investment; RSS: Relative Stress Scale; RT: reminiscence therapy; RYCT: Remembering Yesterday, Caring Today; SD: standard deviation; SES: Social Engagement Scale; SolCos: a transformational reminiscence model on depressive symptoms; SR‐QoL: Self‐Report Quality of Life; VD: vascular dementia; WIB: Well‐being/Ill‐being Scale; ZBI: Zarit Burden Interview.