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Related Concept Videos

Analgesia and Pain Management01:25

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Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
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The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
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Related Experiment Video

Updated: Sep 18, 2025

Determining Pain Detection and Tolerance Thresholds Using an Integrated, Multi-Modal Pain Task Battery
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How Does Self-Declared Chronic Pain Compare to Other Definitions? A Prospective Multicenter Study.

Raoul Daoust1,2, Jean Paquet1, Jeffrey J Perry3

  • 1Department of Emergency Medicine, Research Centre, Hôpital Sacré-Coeur, Montréal, Québec, Canada.

Pain Research & Management
|June 27, 2025
PubMed
Summary

Self-declared chronic pain shows moderate agreement with other definitions, but prevalence varies significantly based on the definition used. Patient-centered self-declaration may help standardize chronic pain assessment.

Keywords:
chronic painemergency departmentself-declaredvalidity

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Area of Science:

  • Pain Medicine
  • Clinical Epidemiology

Background:

  • Chronic pain definitions lack standardization, impacting research and clinical practice.
  • Self-declared chronic pain has not been systematically compared against existing diagnostic criteria.
  • Understanding agreement is crucial for defining chronic pain post-emergency department (ED) visits.

Purpose of the Study:

  • To evaluate the agreement between self-declared chronic pain and established definitions.
  • To compare chronic pain prevalence using different measurement criteria three months after an ED visit.
  • To assess analgesic use patterns across various chronic pain definitions.

Main Methods:

  • Prospective multicenter cohort study including 1411 adult patients discharged from the ED with acute pain and an opioid prescription.
  • Assessment of self-declared chronic pain, pain intensity, frequency, and disability at three months post-ED visit.
  • Calculation of agreement (kappas) between self-declared chronic pain and five other definitions.

Main Results:

  • Prevalence of self-declared chronic pain was 23.0%, ranging from 16.9% to 45.3% with other definitions.
  • Moderate agreement (kappa 0.57-0.60) was found between self-declared pain and most definitions, with lower agreement (kappa 0.47) for pain intensity ≥ 1.
  • Analgesic use was similar across definitions, except for the pain intensity ≥ 1 definition, which showed lower use.

Conclusions:

  • Self-declared chronic pain demonstrates moderate agreement with other definitions, suggesting potential as a patient-centered outcome.
  • Chronic pain prevalence estimates vary widely depending on the definition employed.
  • Standardizing chronic pain definition using self-declaration could improve clinical assessment and research consistency.