. 2021 Mar 3;21:97. doi: 10.1186/s12883-021-02119-6

Table 1.

Clinical and psychiatric features of adolescents with chronic migraine

		Chronic Migraine Group (N = 50)
		Number	Percentage (%)
Gender	Male	11	22
Gender	Female	39	78
Referral Season	Winter	20	40
	Spring	6	12
	Summer	8	16
	Autumn	16	32
Relationship Between Referral and School	During school term	40	80
Relationship Between Referral and School	Not during school term	10	20
Headache Frequency	< 25 days/month	32	64
Headache Frequency	≥ 25 days/month	18	36
Genetic Load for Headache	In mother OR father	30	60
	In mother AND father	7	14
	None	13	26
Obesity	Over-weight/ Obese (BMI ≥ 25)	13	26
Obesity	Normal (BMI < 25)	37	74
Chronic Physical Illness	At least one	8	16
Chronic Physical Illness	None	42	84
Socio-economic Level	Low	23	46
Socio-economic Level	Moderate/ High	27	54
Sleep Pattern	Regular	28	56
Sleep Pattern	Irregular	22	44
Heating of the Household	Central heating (Radiator)	30	60
Heating of the Household	Stove	20	40
History of Traumatic Head Injury	Present	4	8
History of Traumatic Head Injury	Not present	46	92
Dietary Habits	Healthy/ Regular	27	54
Dietary Habits	Irregular	23	46
History of Psychiatric Referral	At least one	14	28
History of Psychiatric Referral	None	36	72
Psychiatric Diagnosis During the Study	At least one	29	58
Psychiatric Diagnosis During the Study	None	21	42
Medications	Atidepressants (Sertraline 25–100 mg/day or Fluoxetine 10–20 mg/day)	25	50
	Propranolol (80 mg/day)	10	20
	Flunirazin (5 mg/day)	5	10
	Vitamin replacement	10	20
History of Cranial CT During Emergency Department Referral	At least one	9	18
	None	41	82
History of SXR During Emergency Department Referral	At least one	23	46
History of SXR During Emergency Department Referral	None	27	54

BMI Body-mass Index, CT Computerized Tomography, SXR Sinus X-ray