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Papers of the Week
Predictors of episodic migraine transformation to chronic migraine: A systematic review and meta-analysis of observational cohort studies.
Abstract
An estimated 2.5-3.1% of people with episodic migraine develop chronic migraine in a year. Several risk factors are associated with an increased risk for this transformation. We conducted a systematic review and meta-analysis to provide quantitative and qualitative data on predictors of this transformation.