• Paul S Nolet, Pierre Côté, J David Cassidy, and Linda J Carroll.
• Department of Graduate Education and Research, Canadian Memorial Chiropractic College, Toronto, Ontario, Canada. pnolet@rogers.com
• J Manipulative Physiol Ther. 2012 Mar 1;35(3):176-83.

ObjectiveThe purpose of this population-based cohort study was to investigate the association between self-reported cardiovascular disorders and troublesome neck pain.MethodsUsing data from the Saskatchewan Health and Back Pain Survey (1995), we formed a cohort of 922 randomly sampled Saskatchewan adults with no or mild neck pain. We used the Comorbidity Questionnaire to measure the point prevalence of self-reported cardiovascular disorders and classified them into 3 levels of severity: (1) absent, (2) present but does not or mildly impacts on my health, and (3) present and moderately or severely impacts on my health. Six and 12 months later, we measured the presence of troublesome neck pain (grades II-IV) using the Chronic Pain Questionnaire. Multivariable Cox regression was used to estimate the association between cardiovascular disorders and the troublesome neck pain while controlling for confounders.ResultsThe follow-up rate was 73.8% (680/922) at 6 months and 62.7% (578/922) at 1 year. No association was found between self-reported cardiovascular disorders that had no or mild impact on health and the onset of troublesome neck pain. We found a crude association between self-reported cardiovascular disorders that moderately or severely impacted health and the onset of troublesome neck pain (crude hazard rate ratio, 4.3; 95% confidence interval, 1.8-10.0). The association was positively confounded by age, sex, and education (adjusted hazard rate ratio, 5.9; 95% confidence interval, 2.3-14.9).ConclusionsOur analysis suggests that self-reported cardiovascular disorders that moderately or severely impact one's health are a risk factor for developing troublesome neck pain.Copyright © 2012 National University of Health Sciences. Published by Mosby, Inc. All rights reserved.

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