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. 2023 Jan 31;2023(1):CD005562. doi: 10.1002/14651858.CD005562.pub3

Cheung 2019.

Study characteristics
Methods Cluster‐RCT
Participants N = 30 (22F/8M)
Early‐to‐moderate dementia (any type) Global Deterioration Scale stages 4 to 6
Mean MoCA 7.9 (SD 4.4)
Age 83.2 (SD 7.2)
73.3% had received either only a primary education or no education (73.3%).
Two daycare centres
Interventions Cognitive stimulating play intervention
Control ‐ social activities (reading newspapers, watching TV)
Outcomes Cognitive: Montreal Cognitive Assessment (MoCA); Fuld Object Memory Evaluation; Modified Verbal Fluency Test
Notes 45‐60 minutes, once a week, for 8 weeks
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Unclear risk Cluster‐randomised, but only 2 clusters, so chance of comparable groups was less, and there was a significant baseline difference on the MoCA cognitive assessment.
Allocation concealment (selection bias) Low risk Randomisation carried out by independent researcher
Blinding of outcome assessment (detection bias)
All outcomes Low risk Data collection and entry undertaken by a blinded research assistant
Incomplete outcome data (attrition bias)
All outcomes Low risk Some attrition due to sickness, 3/18 from cognitive stimulation and 1/12 from control, but used ITT analysis
Selective reporting (reporting bias) Low risk All outcomes reported
Other bias ‐ training and supervision Low risk Training provided by co‐ordinator
Other bias ‐ treatment manual Low risk Clear structure for the approach and example session outline provided