Table 1 Demographic and medical characteristics of the subjects
Sex | Â |
   Women | 20(74%) |
   Men | 7(26%) |
Age | Â |
   Mean in years (SD) | 37.4(9.4) |
Subtype of tension-type headache | Â |
   Episodic | 5 (19%) |
   Chronic | 20 (74%) |
   Other | 2 (7%) |
Prophylactic medication | Â |
   With | 7(26%) |
   Without | 20 (74%) |
Use of on-demand medication | Â |
   With | 13 (48%) |
   Without | 14 (52%) |