Structural brain network characteristics in patients with episodic and chronic migraine

Table 1 Demographic details of the subjects in the study

Group	N	Age (years)*	Sex*	MIDAS	HADS - A	HADS - D	Headache attacks / month*
EM	17	32.7 ± 9.9	F = 13, M = 4	19.65 ± 20.61	5.3 ± 3.9	3.4 ± 2.6	4.0 ± 3.8
CM	12	38.19 ± 16.15	F = 8, M = 4	55.50 ± 12.76	5 ± 3.46	4.67 ± 2.96	18.50 ± 4.25
HC	19	31.7 ± 9.2	F = 10, M = 9	N/A	3.4 ± 2.3	1.3 ± 1.2	N/A
EM/CM with aura	12EM/5CM	35.68 ± 13.15	F = 12, M = 5	30.47 ± 28.32	5.11 ± 3.55	3.88 ± 2.69	8.64 ± 8.71

* We found no significant difference (p > 0.05) in age and sex between the groups: EM - HC, CM - HC and EM – CM (unpaired t-tests and Chi-Square test, respectively). MIDAS values in days. EM episodic migraine, CM chronic migraine, HC healthy controls, F female, M male.
* The label “headache attacks/month rate” represents the average number of migraine headache days in the last three months prior to the MRI (i.e., an attack frequency of 4.0 in EM means that the average number of headache days was four per month across in this group)

ISSN: 1129-2377