Table 1.

Demographic and clinical features of partecipants with Chronic (CM) and Episodic Migraine (EM)

	CM	EM	p-value
Age	46.9 ± 9.6	48.2 ± 13.8	Ns
Sex (F/M)	45/6	30/11	Ns
Age at migraine onset	21.5 ± 8.7	23.1 ± 11.9	Ns
Duration of chronic migraine (years)	4.42 ± 7.9	-	-
Days of migraine/month	21.3 ± 3.3	4.4 ± 3.1	0.001
Days of drug intake/month	20.2 ± 5.7	4.1 ± 2.6	0.001
Number of drugs intake/month	27.1 ± 20.6	4.2 ± 4.1	0.001