Demographic Predictors of Pain Sensitivity: Results From the OPPERA Study

Cara Ostrom, Eric Bair, William Maixner, Ronald Dubner, Roger B. Fillingim, Richard Ohrbach, Gary D. Slade, Joel Daniel Greenspan

Research output: Contribution to journalArticle

Abstract

The demographic factors of sex, age, and race/ethnicity are well recognized as relevant to pain sensitivity and clinical pain expression. Of these, sex differences have been the most frequently studied, and most of the literature describes greater pain sensitivity for women. The other 2 factors have been less frequently evaluated, and current literature is not definitive. Taking advantage of the large Orofacial Pain: Prospective Evaluation and Risk Assessment (OPPERA) study cohort, we evaluated the association of sex, age, and self-reported race with 34 measures of pressure, mechanical, and thermal pain sensitivity encompassing threshold and suprathreshold perception. Women were significantly more pain-sensitive than men for 29 of 34 measures. Age effects were small, and only significant for 7 of 34 measures, however, the age range was limited (18-44 years of age). Race/ethnicity differences varied across groups and pain assessment type. Non-Hispanic white individuals were less pain-sensitive than African-American (for 21 of 34 measures), Hispanic (19 of 34), and Asian (6 of 34) individuals. No pain threshold measure showed significant racial differences, whereas several suprathreshold pain measures did. This suggests that racial differences are not related to tissue characteristics or inherent nociceptor sensitivity. Rather, the differences observed for suprathreshold pain ratings or tolerance are more likely related to differences in central nociceptive processing, including modulation imposed by cognitive, psychological, and/or affective factors. Perspective: The influence of sex, age, and race/ethnicity on various aspects of pain sensitivity, encompassing threshold and suprathreshold measures and multiple stimulus modalities, allows for a more complete evaluation of the relevance of these demographic factors to acute pain perception.

Original languageEnglish (US)
JournalJournal of Pain
DOIs
StateAccepted/In press - May 27 2016
Externally publishedYes

Keywords

  • Ethnic differences
  • Heat pain
  • Pain sensitivity
  • Pressure pain
  • Quantitative sensory testing
  • Racial differences
  • Sex differences

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology
  • Anesthesiology and Pain Medicine

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    Ostrom, C., Bair, E., Maixner, W., Dubner, R., Fillingim, R. B., Ohrbach, R., Slade, G. D., & Greenspan, J. D. (Accepted/In press). Demographic Predictors of Pain Sensitivity: Results From the OPPERA Study. Journal of Pain. https://doi.org/10.1016/j.jpain.2016.10.018