Article ID Journal Published Year Pages File Type
6232074 Journal of Affective Disorders 2015 10 Pages PDF
Abstract

BackgroundUncertainty exists regarding the prevalence and moderators of migraine comorbidity among people with bipolar disorder (BD). We conducted a meta-analysis and meta-regression to investigate the prevalence and moderators of migraine among people with BD.MethodTwo authors independently searched major electronic databases from inception till 02/2015. Articles were included that reported the prevalence of migraine in people with BD with or without a control group. A random effects meta-analysis and exploratory meta-regression were conducted.ResultsFourteen studies were included encompassing 3976 individuals with BD (mean age 35.5 years, SD 7.6, 29% male). The overall pooled prevalence of migraine was 34.8% (95% CI=25.54-44.69). The prevalence of migraine was higher among people with BD-II (54.17%, 95% CI=31.52-75.95, n=742) compared to BD-I (32.7%, 95% CI=18.16-49.19, n=2138, z=3.97, p<0.0001). The prevalence of migraine was 33.9% (95% CI=26.02-42.44), 39.5% (95% CI=18.81-62.39) and 47.11% (95% CI=22.24-72.77) in North America, Europe and South America respectively. The prevalence of migraine was higher when classified according to recognized criteria at 47.91% (95% CI=32.51-63.5) compared to non-recognized criteria (20.0%, 95% CI=12.44-29.06, z=−8.40, p<0.0001). Meta regression suggests mean age may be a potential moderator.ConclusionMigraine is common and burdensome among people with BD. People with BD-II appear to be particularly affected. Nonetheless, future research is required to better understand these relationships, with a special emphasis toward the course specifiers of comorbid migraine cases of either BD-I vs. BD-II.

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