1543 PROMOTING ACTIVITY, INDEPENDENCE AND STABILITY IN EARLY DEMENTIA AND MCI: THE PRAISED RANDOMISED CONTROLLED TRIAL
Bibliographic record
Abstract
Abstract Introduction People living with dementia and MCI progressively lose abilities, through increasing cognitive impairment, co-morbidities, inactivity, acute illnesses and injuries. Rehabilitation therapy may reduce disability and falls and increase resilience. Methods We co-produced a therapy intervention, comprising strength, balance and dual-task exercises, functional activity training and promoting community access, providing up to 50 therapy sessions, delivered over 12 months and underpinned by a behaviour change strategy. We evaluated the intervention in a 5-site multi-centred Randomised Controlled Trial, against a brief assessment control. Participants had a diagnosis of dementia or MCI, Montreal Cognitive Assessment (MoCA) between 13 and 25. Primary outcome was the Disability Assessment in Dementia (DAD), an ADL score, after 12 months, alongside a battery of other health status measures. The COVID-19 pandemic necessitated modifications. Results We recruited 365 participants, 42% female. Median age was 81 years (range 65-95), MoCA 20 (13-26), DAD 82 (5-100). Baseline balance between groups was good. Participants were predominantly white and socioeconomically advantaged. Intervention group participants received a median of 31 (IQR 22-40) session and undertook and additional mean 121 minutes of exercise per week. Assessed fidelity was good. 290 (79%) were followed up. There were no significant differences in DAD score (adjusted mean difference -1.3/100, 95% CI -5.2 to +2.6; effect size (d) -0.06; -0.26 to 0.15; p=0.5), physical activity, balance, quality of life, cognition or a range of other measures. Upper 95% confidence intervals excluded even small benefits. Rate of falling reduced by 22% (Rate Ratio=0.78; 0.46 to 1.3; p=0.3), but this was not statistically significant. Conclusions The intensive PrAISED intervention did not improve measured outcomes. It may be impossible to reduce the rate of functional decline in dementia. Alternatively, the pandemic may have distorted outcomes or participants may have been too advantaged to benefit. There may have been unmeasured psycho-social benefits.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.005 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.004 | 0.003 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.003 | 0.003 |
| Insufficient payload (model declined to judge) | 0.011 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".