Petasites hybridus root (butterbur) is an effective preventive treatment for migraine
Neurology Lipton et al.
63: 2240
Data Supplement
Two tables; Word document.
Files in this Data Supplement:
E1
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Table (E)T-1: Summary of primary and secondary outcomes for each group, including effect sizes (Mann-Whitney estimator), their 95% confidence interval (CI) and p-values [ITT=intention-to-treat; PP=per-protocol]; Table (E)T-2 : Patientīs global assessment using a 4-point verbal scale; Database: n=202; Word document.
