Table 1 (abstract P142). Characteristics of the Study Population

Age years

13.2±2.6

13.7±2.6

0.206^a

 Female

85 (74.6)

49(64.5)

134 (70.5)

0.183^b

 Male

29 (25.4)

27 (35.5)

56 (29.5)

 Unilateral

46 (40.4)

40 (52.6)

86 (45.3)

 bilaterally

68 (59.6)

36 (47.4)

104 (54.7)

Nausea

109 (95.6)

5 (6.6)

114 (60

<0.001^c

Vomiting

42 (36.8)

2 (2.6)

44 (23.2)

<0.001^c

photophobia

108 (94.7)

40 (52.6)

148 (77.9)

<0.001^c

phonophobia

110 (96.5)

53 (69.7)

163 (85.8)

<0.001^c

osmophobia

60 (52.6)

17 (22.4)

77 (40.5)

<0.001^c

allodynia

77 (67.5)

25 (32.9)

102 (53.7

<0.001^c

Headache frequency mean (SD)

8.6±7.8

6.3±5.8

 1 per month

11 (9.6)

13 (17.1)

24 (12.6)

0.006^d

 1 per week

19(16.7)

22 (28.9)

41 (21.6)

 2-3 per week

49 (43.0)

27 (35.5)

76 (40)

 >3 per week

26 (22.8)

10 (13.2)

36 (18.9)

 Daily

9 (7.9)

4 (5.3)

13. (6.8)

Headache duration (h) mean (SD)

9.2±8.8

2.6±1.8

<1 h

5 (4.4)

39 (51.4)

44 (25.2)

0.006^d

1-6

47 (41.2)

28 (36.8)

75 (39.5)

6-12

60 (52.6)

8 (10.5)

68 (25.8)

>12

2 (1.8)

1 (1.3)

3 (1.6)

Pain severity, 0-10 scale, mean (SD)

6.2±5.8

3.4±2.1

Grade 1

2 (1.8)

16 (21.1)

18

0.001^d

Grade II-III

27 (23.6)

56 (73.6)

83 (

Grade IV

85 (74.6)

4 (5.3)

89