Biomarkers in burnout: a systematic review
Marie Bernardine Danhof-Pont1, Tineke van Veen, Frans G Zitman
1Department of Health, Safety, and Environment, Leiden University Medical Center and Leiden University, RC Leiden, The Netherlands. m.b.danhof-pont@lumc.nl
Journal of Psychosomatic Research
|June 1, 2011
Summary
This review found no reliable biomarkers for burnout due to inconsistent study methods. Future research needs a dimensional and longitudinal approach to understand this complex stress state.
Area of Science:
- Psychiatry and Psychology
- Endocrinology
- Immunology
- Metabolic Research
Background:
- Burnout is a stress response with mental exhaustion, fatigue, detachment, and reduced competence.
- Existing research on burnout biomarkers is conflicting and lacks standardization.
Purpose of the Study:
- To systematically review and identify potential biomarkers associated with burnout.
- To synthesize evidence from studies comparing burnout individuals with controls.
Main Methods:
- Conducted a systematic literature review of studies on burnout biomarkers.
- Searched MEDLINE and EMBASE databases for relevant research.
- Included biomarkers with at least three supporting studies and performed meta-analyses where appropriate.
Main Results:
- Identified 31 studies examining 38 biomarkers across multiple physiological systems.
- Meta-analyses revealed no significant differences in cortisol awakening response, blood cortisol, or blood pressure between burnout and control groups.
- Study comparability was limited by variations in patient characterization, biomarker assessment, and confounder control.
Conclusions:
- No definitive biomarkers for burnout were identified due to significant heterogeneity and incomparability of studies.
- A dimensional and longitudinal research approach is recommended to address burnout's complexity and individual variability.
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