Table 1 Clinical and psychiatric features of adolescents with chronic migraine

Gender

Male

11

22

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

Not during school term

10

20

Headache Frequency

<  25 days/month

32

64

≥ 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

Normal (BMI < 25)

37

74

Chronic Physical Illness

At least one

8

16

None

42

84

Socio-economic Level

Low

23

46

Moderate/ High

27

54

Sleep Pattern

Regular

28

56

Irregular

22

44

Heating of the Household

Central heating (Radiator)

30

60

Stove

20

40

History of Traumatic Head Injury

Present

4

8

Not present

46

92

Dietary Habits

Healthy/ Regular

27

54

Irregular

23

46

History of Psychiatric Referral

At least one

14

28

None

36

72

Psychiatric Diagnosis During the Study

At least one

29

58

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

None

27

54