Bidirectional association between migraine and fibromyalgia: retrospective cohort analyses of two populations.

ABSTRACT:

Objective

Fibromyalgia (FM) and migraine are common pain disorders that tend to coexist. This study determined whether these two conditions exhibited any mutual influences.

Setting

Cohort study.

Participants

A retrospective, longitudinal cohort study was conducted using data obtained from a nationwide healthcare database. This study had two arms. Arm 1 comprised 33 216 patients with FM and arm 2 consisted of 7420 patients with migraine; all of these patients were diagnosed between 2000 and 2010. Using the aforementioned database, control subjects who had neither FM nor migraine and were matched with the FM and migraine patients by sex, age and index date of diagnosis were recruited. Each control cohort was four times the size of the corresponding study cohort. Follow-

SUBMITTER: Penn IW 

PROVIDER: S-EPMC6500182 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature