IntroductionHeadache prevalence is age-dependent, declining progressively, especially after 55-60 years of age. This has been confirmed by almost all epidemiologic studies [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Despite this trend, after the age of 65 years, more than 13% of women and 7% of men continue to complain of headache [18]. Chronic tension-type headache, instead, does not seem to decrease with increasing age [18,19]. The etiology of headache is also age-dependent. The incidence of primary headaches declines, while that of secondary headaches tends to become higher with increasing age [20][21][22][23]. Some headaches, such as that secondary to giant cell arteritis, appear in almost all cases after age of 60 years [23]. Among primary headaches, hypnic headache presents an onset prevalently in the elderly [24][25][26]. Elderly patients more often have comorbidity with other disorders [27][28][29][30]. Although the prevalence of headache in the elderly is relevant, few clinical and epidemiologic studies have been conducted until now in patients aged over 65 years. In some studies of the general adult population, only subjects up to 65 years of age have been studied [9,10,31]. We report the prevalence of headache in a population of subjects over 65 years of age seen at our centre.
Materials and methodsWe retrospectively analyzed the clinical charts of 4417 consecutive patients ≥18 years of age referred to our Headache Centre Abstract Although the prevalence of headache in the elderly is relevant, until now few studies have been conducted in patients over the age of 65 years. We analyzed the clinical charts of 4,417 consecutive patients referred to our Headache Centre from 1995 to 2002. There were 282 patients over 65 years of age at the first visit, corresponding to 6.4% of the study population. Primary headaches were diagnosed in 81.6% of the cases, while secondary headaches and non-classifiable headaches represented, respectively, 14.9% and 3.5% of the cases. Among primary headaches, the prevalence was almost the same for migraine without aura (27.8%), transformed migraine (26.1%) and chronic tension-type headache (25.7%). The most frequent secondary headaches were trigeminal neuralgia and headache associated with cervical spine disorder.