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Home › Research › What the research found › Every row

Every row of the evidence table

One row per finding: what was tested, which way the result went, and how the study was built. The answer by area, and where the studies disagree, are on the main page.

Every row

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Area All 382 Care, carers and services 140 Medicines 85 Genes (not modifiable) 35 All modifiable factors together 27 Diet and supplements 23 Exercise and activity 21 Sleep, mood and social life 19 Hearing and vision 8 Alcohol, tobacco and cannabis 6 Infection and vaccination 5 Heart and metabolic health 4 Injury, delirium and falls 4 Environment 3 Cognitive activity 2
Question Both Prevention 190 Treatment 192
Direction Any Benefit 144 Harm 105 No effect 38 Mixed 37 No direction reported 58
Design Any meta-analysis 57 randomised trial 44 phase 3 trial 15 systematic review 9 phase 2 trial 10 cohort study 136 phase 1 trial 2 cross-sectional study 31 case-control study 14 modelling study 20 regulatory decision 7 company announcement 1 coverage determination 1 None 35
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Showing 2 of 382 rows. One row per study per exposure: a study that tested two different things appears twice, once for each.

Scroll the table sideways to see every column.

Research and outcomes, 2 rows. Every row links to its source.
Exposure Question Direction Outcome measured Design People Effect size, as the source reported it Source
Cost-effectiveness of multidomain prevention programme Care, carers and services Prevention Benefit
why

Direction is for value for money: the intervention was modelled as dominant, saving JPY 452,826 per person and adding 0.08 QALYs over 35 years, with sensitivity analyses described as confirming robustness. A model extrapolating an 18-month trial.

 Lifetime costs and QALYs of the J-MINT multidomain intervention versus usual care (35-year model) modelling study not stated Over 35 years, J-MINT was projected to achieve cost savings of JPY 452,826 per person and a gain of 0.08 QALYs The journal of prevention of Alzheimer's disease 2026
✓ Peer-reviewed PMID 41478834
Health-system and payment model Care, carers and services Treatment Benefit
why

Direction is for the benefit redesign: projected out-of-pocket drug spending fell 55% ($56 to $25) for low-income-subsidy beneficiaries and 25% ($772 to $576) for others, with larger reductions for people with 6-8 comorbidities.

 Simulated annual out-of-pocket drug spending for Medicare beneficiaries with dementia under the 2025 Part D cost-sharing rules modelling study 1,677 we project average annual OOP drug expenditures among LIS beneficiaries with dementia to decrease from $56 to $25-representing a $31, or 55%, reduction. In contrast, among non-LIS beneficiaries, average OOP drug expenditures is projected to decrease from $772 to $576, a $196, or 25% reduction Value in Health 2025
✓ Peer-reviewed PMID 39880200

How this table was built, and where it is weak →