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- Ingunn Mundal, Johan Håkon Bjørngaard, Tom I L Nilsen, and Barbara I Nicholl.
- Department of Neuroscience, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway; Psychiatric Out-Patient Unit, Kristiansund Hospital, Møre and Romsdal Hospital Trust, Kristiansund, Norway. Electronic address: ingunn.mundal@gmail.com.
- J Pain. 2016 Nov 1; 17 (11): 1246-1256.
AbstractIn a Norwegian prospective population-based cohort study, we examined whether the number of chronic musculoskeletal pain sites changed over an 11-year period, and if the number of pain sites at follow-up was associated with health-related and lifestyle factors at baseline. The study included data on 78,973 adults participating in the Nord-Trøndelag Health Study (HUNT) in 1995 to 1997 (HUNT2) and 2006 to 2008 (HUNT3). On the basis of 3 categories of baseline pain sites, associations between baseline health-related, lifestyle, and demographic factors and number of pain sites at follow-up were analyzed with linear regression models adjusted for age, sex, marital status, physical activity, education, and other chronic diseases. We also estimated within-subject associations. Regardless of pain extent at baseline, anxiety and/or depression, sleeping problems, smoking, and obesity were positively associated with number of pain sites at follow-up, whereas education and physical activity were inversely associated with number of pain sites. The within-subject analyses showed largely similar associations for the health-related factors, whereas associations of lifestyle factors were attenuated. The mean number of pain sites remained unchanged between the 2 surveys. Overall, our study revealed prospective associations between several factors and pain sites 11 years later, regardless of the number of pain sites at baseline.Copyright © 2016 American Pain Society. All rights reserved.
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