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Pain Sensitivity and its Relation to Spreading on the Body, Intensity, Frequency, and Duration of Pain A Cross-Sectional Population-based Study (SwePain)

Journal article
Authors B. Larsson
B. Gerdle
J. Bjork
Anna Grimby-Ekman
Published in Clinical Journal of Pain
Volume 33
Issue 7
Pages 579-587
ISSN 0749-8047
Publication year 2017
Published at Institute of Medicine, Department of Public Health and Community Medicine, Section of Occupational and environmental medicine
Institute of Medicine, Department of Public Health and Community Medicine, Health Metrics
Pages 579-587
Language en
Links doi.org/10.1097/AJP.000000000000044...
Keywords pain sensitivity, local pain, regional pain, wide spread pain, chronic widespread pain, whiplash-associated disorders, lumbar spinal, stenosis, pressure pain, fibromyalgia syndrome, general-population, trapezius muscle, sex-differences, osteoarthritis, hyperalgesia, Anesthesiology, Neurosciences & Neurology
Subject categories Anaesthetics, Neurosciences

Abstract

Objectives:Individuals with chronic pain often report increased pain sensitivity compared with pain-free individuals; hence, it is crucial to determine whether and how different pain characteristics influence or interact with pain sensitivity. An alternative to experimental pain sensitivity testing is the self-reported pain sensitivity questionnaire (PSQ), which captures pain sensitivity in various body areas.This study compares PSQ in individuals with and without pain and clarifies how pain sensitivity relates to spreading of pain on the body, and to intensity, frequency, duration of pain and to age and sex.Materials and Methods:A total of 5905 individuals with pain and 572 individuals without pain from the general population in southeastern Sweden completed and returned a postal questionnaire.Results:The mean PSQ score was 3.9 (95% confidence interval [CI], 3.88-3.98) in individuals with pain and 3.5 (95% CI, 3.38-3.64) in pain-free individuals. Hence, PSQ was the highest among individuals with pain, with a difference of 0.4 (95% CI, 0.30-0.56). There was a considerable variation in the PSQ values (mean=3.5; SD=1.54) among pain-free individuals. Pain sensitivity was positively related to spreading, intensity, and frequency of pain, with a correlation coefficient of 0.3. PSQ was higher in widespread pain, 4.5 (95% CI, 4.27-4.69) in women and 4.3 (95% CI, 3.94-4.71) in men, than in local pain, 3.7 (95% CI, 3.61-3.91) in women and 3.8 (95% CI, 3.66-3.95) in men. The score for women with regional pain was between local and widespread pain at 4.0 (95% CI, 3.95-4.11) and that for men with regional pain was 3.8 (95% CI, 3.69-3.87), which is equal to that of local pain.Discussion:The positive association between pain sensitivity and spreading of pain on the body provides some evidence that the extent of spreading may be related to the degree of pain sensitivity. Before clinical use of PSQ, psychometric development and further research are needed.

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