Table 1.

Demographics of patients and controls as well as headache diagnosis. Mean values and range are indicated.

	Headache patients (N = 58)	Controls (N = 58)
Age	34.5 years (18–57 years)	39.5 years (18–61 years)
Male/female	13/45	13/45
FETTH*	6	0
CTTH*	52	0
History of migraine*	26	3
Frequency (CTTH) (days/month)	28.3 (15–30 days/month)
Frequency (f-ETTH) (days/month)	9.8 (8–12 days/month)
Frequency total (days/month)	28.1 (8–30 days/month)

*More than 1 headache diagnosis could be applied to the patients.

*FETTH: frequent episodic tension-type headache.

*CTTH: chronic tension type-headache.