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Only Small Effects of Mindfulness-Based Interventions on Biomarker Levels of Inflammation and Stress: A Preregistered Systematic Review and Two Three-Level Meta-Analyses.

Authors :
Grasmann, Jakob
Almenräder, Frederick
Voracek, Martin
Tran, Ulrich S.
Source :
International Journal of Molecular Sciences; Mar2023, Vol. 24 Issue 5, p4445, 23p
Publication Year :
2023

Abstract

Mindfulness-based interventions (MBIs) have a positive effect on biomarkers of inflammation and stress in patients with psychiatric disorders and physical illnesses. Regarding subclinical populations, results are less clear. The present meta-analysis addressed the effects of MBIs on biomarkers in psychiatric populations and among healthy, stressed, and at-risk populations. All available biomarker data were investigated with a comprehensive approach, using two three-level meta-analyses. Pre–post changes in biomarker levels within treatment groups (k = 40 studies, total N = 1441) and treatment effects compared to control group effects, using only RCT data (k = 32, total N = 2880), were of similar magnitude, Hedges g = −0.15 (95% CI = [−0.23, −0.06], p < 0.001) and g = −0.11 (95% CI = [−0.23, 0.001], p = 0.053). Effects increased in magnitude when including available follow-up data but did not differ between type of sample, MBI, biomarker, and control group or duration of the MBI. This suggests that MBIs may ameliorate biomarker levels in both psychiatric and subclinical populations to a small extent. However, low study quality and evidence of publication bias may have impacted on the results. More large and preregistered studies are still needed in this field of research. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
16616596
Volume :
24
Issue :
5
Database :
Complementary Index
Journal :
International Journal of Molecular Sciences
Publication Type :
Academic Journal
Accession number :
162347620
Full Text :
https://doi.org/10.3390/ijms24054445