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Table 3 Frequency of headache at baseline in the different drug groups. ANOVA with drug as a factor: F = 20.54, p < 0.0001. Bonferroni with antiepileptics and antidepressants vs beta-blockers, calcium channel blockers and integrators: p < 0.001. Sartans vs integrators: p < 0.05

From: Failure of preventive treatments in migraine: an observational retrospective study in a tertiary headache center

Drugs Mean SEM 95% CI
    Lower Upper
Beta-blockers 9.46 1.25 7.01 11.90
Calcium channel blockers 9.45 0.65 8.17 10.73
Antidepressants 14.64 0.41 13.84 15.43
Integrators 7.30 1.05 5.25 9.36
Antiepileptics 15.24 0.50 14.25 16.23
Sartans 12.94 1.40 10.21 15.68