The dependence scale: an easy tool to detect chronic daily headache with medication overuse?
- 1Service de Neurologie et Pathologie Neurovasculaire, Hôpital Salengro, CHRU de Lille, Lille, France
- 2Department of Neurology, University Hospital Essen, Essen, Germany
- Dr Christian Lucas, Service de Neurologie et Pathologie Neurovasculaire, Hôpital Salengro, CHRU de Lille, 59037 Lille Cedex, France; clucas{at}chru-lille.fr
- Received 5 March 2009
- Accepted 6 March 2009
Chronic daily headache (CDH), defined by ≥15 headache days/month for at least 3 months,1 is a major health problem which concerns approximately 3–4% of the general population.2 The total cost is also very high. It represents, for example, around 2 billion Euros in France per year.3 CDH is a descriptive entity in which the diagnosis could be essentially chronic tension-type headache and chronic migraine with or without medication overuse. The main complication of episodic tension-type headache and …







