Abstract
BackgroundThe International Classification of Headache Disorders (ICHD-3) uses moderate or severe pain intensity in the diagnostic criterion for migraine. However, few studies have analyzed pain rating on a visual analog scale to identify the numerical intensity that correlates with migraine.ObjectiveTo evaluate the impact of daily self-rated headache pain among patients with either episodic or chronic migraine. This study specifically aims to evaluate the probability of patients labeling their head pain as a headache vs. migraine based on the pain level reported.MethodsA retrospective chart review was conducted on patients with a clinical diagnosis of migraine from July 1, 2014, to July 1, 2019.ResultsData of 114 subjects (57 episodic migraine and 57 chronic migraine) were used for analysis. Patients with episodic migraine on average rated a migraine more severe than a headache (4.1 vs. 6.4; p < 0.001). Patients with chronic migraine on average also rated migraine more severe than a headache (4.3 vs. 6.8; p = 0.0054). Chronic migraine patients transitioned from calling head pain a headache to a migraine significantly later than episodic migraine patients (4.5 vs. 6.8; p < 0.05).ConclusionA migraine is perceived as having higher pain intensity than a headache in patients with both episodic and chronic migraine. On average, patients with chronic migraine had a higher pain rating at which they report head pain to be considered a migraine.
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