Chronic Pain and the Risk of Dementia: A Systematic Review and Meta-Analysis
Qingxiu Lin1, Nianzhuang Qiu2,3, Xingxing Wang1
1School of Nursing, Peking University, Beijing, 100191, China.
Current Pain and Headache Reports
|July 22, 2026
Summary
Chronic pain is linked to a 28% increased risk of dementia, according to a meta-analysis. Specific pain types like arthritis and headaches contribute to this risk, highlighting the need for further research into pain management and dementia prevention.
Area of Science:
- Neurology
- Epidemiology
- Pain Medicine
Background:
- The link between chronic pain and dementia risk is debated, with previous studies yielding inconclusive results.
- Recent large-scale cohort studies offer new evidence on this association.
Purpose of the Study:
- To conduct an updated meta-analysis synthesizing recent evidence on the relationship between chronic pain and dementia risk.
- To investigate specific pain types and demographic factors influencing this association.
Main Methods:
- Systematic literature search of multiple databases (PubMed, Web of Science, Embase, Cochrane Library, CNKI) for cohort studies up to April 2025.
- Pooled risk ratios (RR) using random-effect models for 25 studies (2,091,835 participants), with subgroup analyses and meta-regression to address heterogeneity.
- Hazard ratios were treated as risk ratios assuming low event rates.
Main Results:
- Chronic pain was associated with a 28% increased risk of dementia (RR = 1.28, 95% CI = 1.18-1.38).
- Significant associations were observed for migraine, headaches, arthritis-related pain, and widespread pain.
- The association varied by region (significant in Asia) and dementia type (increased risk for Alzheimer's and non-vascular dementia, but not vascular dementia).
Conclusions:
- Chronic pain is associated with an elevated dementia risk, but the observational nature of studies precludes causal inference.
- High heterogeneity was noted, influenced by pain type, region, and diagnostic criteria.
- Further research is warranted to explore if pain management interventions can reduce dementia risk.
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