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Association Between Educational Attainment and Chronic Pain: A Mediation Mendelian Randomization Study
Hanqi Wang1, Mingjuan Liu1, Hongbo Li1
1Department of Anesthesiology and Pain Research Center, The First Hospital of Jiaxing University, Jiaxing, People's Republic of China.
Journal of Pain Research
|April 8, 2025
Summary
Higher educational attainment significantly lowers the risk of chronic pain. This protective effect is partly explained by factors like body mass index, smoking, and depression.
Area of Science:
- Genetics
- Epidemiology
- Public Health
Background:
- The relationship between educational attainment (EA) and chronic pain (CP) risk remains unclear.
- Investigating the causal link between EA and CP is crucial for public health strategies.
Purpose of the Study:
- To determine the causal effect of educational attainment on chronic pain risk.
- To explore potential mediating factors in the relationship between EA and CP.
Main Methods:
- Mendelian randomization (MR) analysis using single nucleotide polymorphisms (SNPs) for EA.
- Employed various MR methods including Inverse-Variance Weighted (IVW) and Weighted Median.
- Conducted mediation analyses to assess indirect effects through potential mediators.
Main Results:
- Genetically predicted higher EA was associated with reduced risk of multisite chronic pain (MCP).
- Body mass index (BMI), smoking, and depression were identified as significant causal mediators.
- EA's effect on MCP was partially mediated by BMI (17.1%), smoking (23.6%), and depression (9.2%).
Conclusions:
- Higher educational attainment demonstrates a protective effect against chronic pain.
- Interventions targeting BMI, smoking, and depression may help mitigate the impact of lower EA on CP risk.
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