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Pain catastrophizing mediates the relationship between pain intensity and depressive symptoms in adults with chronic pain

This systematic review and meta-analysis identified pain catastrophizing as a mediator of the pain-depression relationship in adults with chronic pain. Pooled indirect effect for pain catastrophizing on the pain-to-depression pathway was β = 0.150 (95% CI: 0.066, 0.233), but with substantial heterogeneity and high influence from a single study. Narrative synthesis also supported sleep quality, pain self-efficacy, and pain interference as preliminary mediators.

Last updated: Aug 15, 2026•0 RCTs•1 Meta-analyses•📖 Read as article →

Evidence Score

Evidence Score49/100
Human RCT☆☆☆☆☆
Meta-analysis★★★☆☆
Mechanism★★★★★
Safety★★★★☆
Confidencelow

Study Evidence

Study 1. Mediators of the Pain-Depression Relationship in Adults with Chronic Pain: A Systematic Review and Exploratory Meta-Analyses.

observational

Tenti M, Proietti S, Fagnani C, Medda E, Sampaolo L, Camoni L, Cilenti F, Varallo G, Malafoglia V, Raffaeli W, Toccaceli V · Journal of clinical medicine (2026)

Participants: N/A
Duration: N/A
Intervention: Not applicable (observational mediation analysis)
Outcome: Mediation of the relationship between pain intensity and depressive symptoms (indirect, direct, and total effects)
Effect Size: Indirect effect β = 0.150 (95% CI: 0.066, 0.233) for pain catastrophizing
Population: Adults with chronic pain (29 studies, combined n = 13,587 for pain-to-depression pathway)

Result:

PubMed: 42589889DOI: 10.3390/jcm15155784

Mechanism Graph

Pain intensity increases pain catastrophizing
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Pain catastrophizing heightens negative cognitive and emotional responses
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Heightened catastrophizing leads to increased depressive symptoms
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Result: Pain catastrophizing partially mediates the pain-depression relationship

Limitations

  • ⚠Substantial heterogeneity for pain catastrophizing meta-analysis, with results highly influenced by a single study
  • ⚠Predominance of cross-sectional evidence limits causal inference
  • ⚠Limited number of studies for each mediator and lack of standardized measures

Frequently Asked Questions

What is the main mediator between pain and depression in chronic pain?▼

Pain catastrophizing was the most consistently supported mediator, with a pooled indirect effect of β = 0.150 (95% CI: 0.066, 0.233) for the pain-to-depression pathway.

How strong is the evidence for pain catastrophizing as a mediator?▼

The evidence is preliminary; the meta-analysis showed substantial heterogeneity and was highly influenced by a single study, so confidence is moderate.

What other factors might mediate the pain-depression relationship?▼

Sleep quality, pain self-efficacy, and pain interference showed preliminary evidence of mediation in narrative synthesis.

What study designs are needed to confirm these mediators?▼

Robust three-wave longitudinal mediation studies with adequate statistical power, standardized measures, and theory-driven models are needed.

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References

  1. 1.Tenti M, Proietti S, Fagnani C, Medda E, Sampaolo L, Camoni L, Cilenti F, Varallo G, Malafoglia V, Raffaeli W, Toccaceli V. "Mediators of the Pain-Depression Relationship in Adults with Chronic Pain: A Systematic Review and Exploratory Meta-Analyses.." Journal of clinical medicine, 2026. PMID: 42589889 DOI: 10.3390/jcm15155784
Disclaimer: This content is for educational purposes only and is not medical advice. Evidence scores reflect the quality and quantity of available research, not clinical recommendations. Always consult a healthcare professional before starting any supplement or intervention.