SynthesisAge and ageing2025
Association of lipid-lowering therapy with dementia and cognitive outcomes: a systematic review and meta-analysis.
Synthesis in Age and ageing, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Review
- Hypolipidemics reduce the rate of Alzheimer's disease development and dementia progression: A cohort study linked with genetic and neuropathological analyses.The journal of prevention of Alzheimer's disease · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
objectivesLipid-lowering agents are effective in reducing cardiovascular risk, but their effect on cognitive impairment and dementia is uncertain. The aim of this meta-analysis was to determine whether lipid-lowering therapy, compared to control, was associated with a reduction in risk of dementia or cognitive impairment.
methodsWe performed a systematic review and meta-analysis of randomised controlled trials comparing lipid-lowering therapy to control that reported dementia or change in cognitive scores, adhering to the Cochrane Collaboration Guidelines. A random effects meta-analysis was used to estimate a pooled treatment-effect. The primary outcome measure was incident cognitive impairment or dementia.
resultsTwenty randomised controlled trials were eligible for inclusion, 15 trials (n = 139 169 participants) reported dementia or cognitive impairment on follow-up (primary outcome) and nine trials (n = 32 370) reported on change in cognitive score. The mean (SD) age of trial participants was 65.4 (5.06) years in the intervention arm and 65.4 (5.03) in the control arm. Lipid-lowering therapy compared with control was not associated with a significant reduction in dementia or cognitive impairment (1.33% vs 1.36% over a mean trial follow-up of 34.5 months; Odds Ratio, 0.96; 95% CI, 0.74-1.26). Heterogeneity was moderate (I2 = 37.6%). There was no significant association amongst drug classes (Statin; OR 0.90; 95% CI, 0.67-1.21, PCSK9 inhibitor: OR 1.77; 95% CI, 0.46-6.83, Other: OR 0.85; 0.61-1.17). DISCUSSION: In this meta-analysis of over 100 000 participants, lipid-lowering therapy was not significantly associated with a lower risk of incident cognitive impairment or dementia. This meta-analysis provides evidence to support the safety of lipid-lowering therapy on cognitive health, however, does not provide evidence of risk reduction of incident cognitive impairment or dementia.
Indexed as
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What Socratic holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.