• Betsy Wan, Sarah Gebauer, Joanne Salas, Christine K Jacobs, Matthew Breeden, and Jeffrey F Scherrer.
• Department of Family and Community Medicine, University of California San Francisco, San Francisco, California.
• Pain Med. 2019 Nov 1; 20 (11): 2129-2133.

ObjectiveComorbid psychiatric and pain-related conditions are common in patients with fibromyalgia. Most studies in this area have used data from patients in specialty care and may not represent the characteristics of fibromyalgia in primary care patients. We sought to fill gaps in the literature by determining if the association between psychiatric diagnoses, conditions associated with chronic pain, and fibromyalgia differed by gender in a primary care patient population.DesignRetrospective cohort.Setting And SubjectsMedical record data obtained from 38,976 patients, ≥18 years of age with a primary care encounter between July 1, 2008, to June 30, 2016.MethodsInternational Classification of Diseases-9 codes were used to define fibromyalgia, psychiatric diagnoses, and conditions associated with chronic pain. Unadjusted associations between patient demographics, comorbid conditions, and fibromyalgia were computed using binary logistic regression for the entire cohort and separately by gender.ResultsOverall, 4.6% of the sample had a fibromyalgia diagnosis, of whom 76.1% were women. Comorbid conditions were more prevalent among patients with vs without fibromyalgia. Depression and arthritis were more strongly related to fibromyalgia among women (odds ratio [OR] = 2.80, 95% confidence interval [CI] = 2.50-3.13; and OR = 5.19, 95% CI = 4.62-5.84) compared with men (OR = 2.16, 95% CI = 1.71-2.71; and (OR = 3.91, 95% CI = 3.22-4.75). The relationship of fibromyalgia and other diagnoses did not significantly differ by gender.ConclusionsExcept for depression and arthritis, the burden of comorbid conditions in patients with fibromyalgia is similar in women and men treated in primary care. Fibromyalgia comorbidities in primary care are similar to those found in specialty care.© 2019 American Academy of Pain Medicine. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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