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Are adults with chronic pain more likely to develop hypertension than adults without chronic pain? A systematic review and meta-analysis

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Abstract

Background: An association between persistent pain and blood pressure is increasingly recognised but is not fully understood. This systematic review aimed to establish whether chronic pain (CP) is associated with a diagnosis of hypertension (HTN).

Methods: After prospective registration (PROSPERO ID: CRD42025629486), we searched six databases from inception until 8 January 2025 for studies investigating the association between CP and HTN. Title/abstract screening, full-text review, data extraction, and risk of bias assessment were performed by two independent reviewers. Study quality assessment used the Risk of Bias In Non-randomised Studies of Exposures (ROBINS-E) tool. Metaanalysis was carried out using the random effects model.

Results: From 7,973 records, we identified 23 eligible studies for inclusion of which 20 provided suitable data for meta-analysis (total participants (n)=1,594,264). The pooled odds ratio for HTN in people with CP compared to controls was 1.66 (95% CI 1.28-2.15) with high inter-study heterogeneity (I 2=99.8%, Cochran Q=10,132, p<0.001). For specific pain conditions, the pooled odds ratio for HTN was 1.38 (95% CI 1.20-1.58, n=374,234, heterogeneity: I2=65.1%, Cochran Q=14.34, p=0.014) in people with chronic widespread pain and 1.56 (95% CI 1.37-1.79, n=477,681, heterogeneity: I2=0%, Cochran Q=0.17, p=0.92) in people with chronic headache. There was no association of HTN with musculoskeletal pain, lower back pain, or according to gender.

Conclusions: In line with a growing body of evidence in this field, this systematic review and meta-analysis confirms an association between CP and HTN. Further research is warranted to understand this association and elucidate any mediating factors.
Original languageEnglish
Pages (from-to)685-696
JournalBritish Journal of Anaesthesia
Volume135
Issue number3
Early online date9 Jul 2025
DOIs
Publication statusPublished - Sept 2025

Keywords

  • back pain
  • chronic headache
  • chronic pain
  • fibromyalgia
  • hypertension

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine

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