OBJECT: To investigate the rhythmicity of migraine episodes without aura in a pediatric population. METHODS: Time of occurrence of 2517 migraine attacks in 115 children was recorded, by means of a diary, both by hourly and monthly intervals. RESULTS: A significant circadian variation, characterized by a peak in the afternoon (P < .001) and one in the early morning (P= .002) was found. A seasonal peak was also observed between November and January, while a nadir was observed in July. CONCLUSIONS: The clustering of attacks in the morning and midday and in autumn-winter, with a minimum frequency in July, suggests that school activities may represent an important cause of migraine.
OBJECT: To investigate the rhythmicity of migraine episodes without aura in a pediatric population. METHODS: Time of occurrence of 2517 migraine attacks in 115 children was recorded, by means of a diary, both by hourly and monthly intervals. RESULTS: A significant circadian variation, characterized by a peak in the afternoon (P < .001) and one in the early morning (P= .002) was found. A seasonal peak was also observed between November and January, while a nadir was observed in July. CONCLUSIONS: The clustering of attacks in the morning and midday and in autumn-winter, with a minimum frequency in July, suggests that school activities may represent an important cause of migraine.
Authors: Sanjay Prakash; Nivedita C Mehta; Ajay S Dabhi; Om Lakhani; Madhuri Khilari; Nilima D Shah Journal: J Headache Pain Date: 2010-05-13 Impact factor: 7.277