Incidence and predictors for chronicity of headache in patients with episodic migraine

@article{Katsarava2004IncidenceAP,
  title={Incidence and predictors for chronicity of headache in patients with episodic migraine},
  author={Z. Katsarava and S. Schneeweiss and T. Kurth and U. Kroener and G. Fritsche and A. Eikermann and H. Diener and V. Limmroth},
  journal={Neurology},
  year={2004},
  volume={62},
  pages={788 - 790}
}
The authors followed 532 consecutive patients with episodic migraine (<15 days/month) for 1 year. Sixty-four patients (14%) developed chronic headache (≥15 days/month). The odds ratios for developing CH were 20.1 (95% CI 5.7 to 71.5) comparing patients with a “critical” (10 to 14 days/month) vs “low” (0 to 4 days/month) and 6.2 (95% CI 1.7 to 26.6) in patients with an “intermediate” (6 to 9 days/month) vs “low” headache frequency and 19.4 (95% CI 8.7 to 43.2) comparing patients with and without… Expand

Paper Mentions

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Population studies estimate that patients who have episodic migraine transition to chronic migraine at a rate of about 2.5% per year. CM is a devastating disorder associated to… Expand
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