Health related quality of life in subgroups of WAD (Whiplash associated disorder) individuals with respect to cold hyperalgesia in quantitative sensory testing (QST)
2006 (English)In: EFIC Pain in Europe V,2006, 2006Conference paper (Other academic)
Background and aims The term Whiplash associated disorders (WAD) includes a wide range of complaints, with neck pain as predominating symptom. Living with long term pain influences quality of life. In previous studies of other chronic pain patients, subgrouping has been made according to cold pain thresholds measured in QST. The aims of the present study are threefold, (1) to evaluate thermal pain thresholds and health related quality of life in WAD patients compared to healthy pain-free individuals, (2) to explore whether subgrouping of the WAD patients was possible according to cold pain thresholds (CPT), and (3) to explore differences between the subgroups. Methods: Thermal pain thresholds were measured using QST. The SF-36 was used to assess health related quality of life. Results: WAD patients showed significantly decreased CPT (p=0.007) and lower scores on the SF-36 in all scales when compared with healthy pain-free individuals. After analyzing clusters (K-means algorithm) two subgroups of WAD emerged, slightly cold pain sensitive and highly pain sensitive. The slightly pain sensitive group differed significantly from the highly sensitive group on in the Role Emotional scale of SF-36 (p=0.025). Conclusions: Cold pain hyperalgesia seems to be a determinant for subgrouping of WAD patients, with respect to health related quality of life, and might be the result of central sensitization or peripheral mechanisms or as a result of personal characteristics. These group differences might be of importance when guiding patients to treatment interventions as well as when exposing subjects to cold in the clinical situation.
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IdentifiersURN: urn:nbn:se:liu:diva-36023Local ID: 29447OAI: oai:DiVA.org:liu-36023DiVA: diva2:256871