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Social support and telomere length: a meta-analysis.
Mariah Montoya1, Bert N Uchino2
1Department of Psychology, University of Utah, Salt Lake City, USA.
Journal of Behavioral Medicine
|January 8, 2023
Summary
Social support, crucial for health and longevity, was examined for its link to telomere length. This meta-analysis found no significant association between social support and telomere length across 17 studies.
Area of Science:
- Psychoneuroimmunology
- Molecular biology
- Public health
Background:
- Lower social support is linked to increased all-cause mortality.
- Understanding biological mechanisms connecting social support to health is essential.
- Telomere length is a biomarker for cellular aging and health risk.
Approach:
- A meta-analytic review was conducted following PRISMA guidelines.
- Seventeen studies investigating social support and telomere length were analyzed.
- Statistical analyses, including funnel plots and Kendall's Tau, assessed for bias.
Key Points:
- No significant relationship was found between higher social support and longer telomere length (Zr = 0.010, p > 0.05).
- The confidence interval suggests a small to null association.
- Moderator analyses (support measure, sample health, age, specimen type, gender) were not significant.
Conclusions:
- This review found no significant link between social support and telomere length.
- Further research is needed to explore other biological pathways.
- Future studies should investigate diverse populations and methodologies.
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