• Cephalalgia · Apr 2001

    The Vågå study; epidemiology of headache I: the prevalence of ultrashort paroxysms.

    • O Sjaastad, H Pettersen, and L S Bakketeig.
    • Department of Neurology, Regionsykehuset i Trondheim, Trondheim University Hospitals (NTNU), Trondheim, Norway. berit.mjoen@medisin.ntnu.no
    • Cephalalgia. 2001 Apr 1; 21 (3): 207-15.

    AbstractIn a large-scale study of headache epidemiology in Vågå, Norway, 1838 adult parishioners(18--65 years of age) were examined, and this represents 88.6% of the target group. Jabs and jolts syndrome/idiopathic stabbing headache (ISH) was verified in 35.2% of the questioned parishioners. This prevalence is much higher than previously observed ones. There were clearly more females than males, the female/male ratio being 1.49, as compared to a ratio of 1.06 in the study cohort (P-value: < 0.0001, chi(2) test). The ratio, 1.49, also differs clearly from a previously observed one: 6.6 (P-value = 0.0003, Fisher's exact test). Control studies included blinded re-check of 100 work-ups, with complete concurrence (kappa-value of 1.00 and blinded re-check of 41 individuals (kapp value of 0.841). Jabs and jolts/ISH are frequent and almost the sole shortlasting (generally < 3 s duration) cephalic paroxysms.

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