The Study
What is the impact of ongoing statin use on cognitive decline and dementia progression in older adults with mild-moderate Alzheimer disease?
This study watched two groups of people with mild to moderate Alzheimer's — some who kept taking statins and some who didn’t — and checked how their memory changed over 18 months. It found no difference in memory decline between the groups, but because people chose whether to take statins (they weren’t randomly assigned), we can’t say for sure that statins had nothing to do with it.
Analysis score
Maximum 72 for a cohort study.
Where the score came from
This study looked at whether taking statins every day helps slow down memory loss in older people who already have mild to moderate Alzheimer’s disease.
Where does this study sit?
Systematic Reviews & Meta-analyses
Max 100Randomized Trials
Max 90Cohort Studies
Max 72Case-Control
Max 58Cross-Sectional
Max 44Case Reports & Series
Max 30Expert Opinion
Max 558 / 100
Quality score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Key takeaways
Summary
Based on the study abstract and findings.
- 1The results show statins don’t meaningfully slow Alzheimer’s progression, but they also don’t make it worse or cause more health problems in these patients.
- 2After 18 months, statin users did not decline slower than non-users: ADAS-Cog difference was -0.67 (p=0.20), CDR-Sb difference was -0.34 (p=0.07), DAD difference was -2.00 (p=0.29).
- 3No more side effects were seen in statin users.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
PLOS ONE
Year
2023
Authors
C. Murphy, A. Dyer, Brian Lawlor, S. Kennelly
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.