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Fig. 1 | The Journal of Headache and Pain

Fig. 1

From: Medication overuse headache in Europe and Latin America: general demographic and clinical characteristics, referral pathways and national distribution of painkillers in a descriptive, multinational, multicenter study

Fig. 1

Study population. The flowchart illustrates the population. a)Patients (N = 444) were excluded for 3 main reasons: previous detoxifications (mostly in the European Centers), wrong referral diagnosis (mostly in the LA Centers) and refusal to participate (equal distribution between EU and LA areas). Furthermore, 191 patients did not fullfill the criteria after filling out headache diary or did not have an internet spot available at home or nearby. Finally, 58 patients were excluded because they did not show up to the following visit or dataset was incomplete. Of the included patients, 435 came from Europe and 234 came from Latin America

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The Journal of Headache and Pain

ISSN: 1129-2377

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