Genetics of tension-type headache

Table 1 Prevalence of tension-type headache in the general population from industrialised countries (from [6], with permission)

Country	Study method	Number of participants	Age (year)	Time period prevalence	Tension-type headache
Country	Study method	Number of participants	Age (year)	Time period prevalence	Women (%)	Men (%)	All (%)
Canada [3]	Telephone interview	2,737	>15	Lifetime	21	37	29
Chile [4]	Questionnaire	1,385	>14	Lifetime	18	35	27
Denmark [5]	Clinical interview	740	25–64	Lifetime	69	88	78
	and examination			One year	63	86	74
				Point	9	16	12
Denmark [6]	Questionnaire	3,425	40	One year	77	91	84
Denmark [7]	Questionnaire	28,195	12–41	One year	79	93	86
Finland [8]	Clinical interview	200	>15	One year	37	42	40
Germany [9]	Questionnaire	4,061	>18	Lifetime	36	39	38
Norway [10]	Questionnaire	51,383	>-20	One year	22	30	26
Sweden [11]	Telephone	1,284	17–82	Lifetime	11	16	14
	lay interview
UK [12]	Questionnaire	727	Adults	Lifetime	29	35	32
UK [13]	Questionnaire	882	35–54	One year	42	61	52
USA [14]	Telephone interview	13,345	18–65	One year	38	45	41

ISSN: 1129-2377