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 |
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Interventions | Cognitive stimulating play intervention Control ‐ social activities (reading newspapers, watching TV) |
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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 |