Subjects
nausea or vomiting, TTH, days/month, pain, phonophobia, ICHD-3, headache, pressing/tightening, photophobia
HEADACHE DISORDERS
Ninety-three subjects diagnosed with TTH by their neurologist or general practitioner in adherence to the International Classification of Headache Disorders (ICHD-3) criteria were recruited from primary care.The inclusion criteria were age>18 and a TTH diagnosis. The ICHD-3 diagnostic criteria for chronic TTH were a headache occurring on ≥15 days/month on average for >3 months, and for the frequent episodic TTH diagnostic were headache occurring on at least 10 episodes of headache occurring on 1–14 days/month on average for >3 months. In both cases headache lasting from 30 minutes to 7 days, bilateral location, pressing/tightening quality, mild or moderate pain, not aggravated by routine physical activity, no nausea or vomiting and no more than one photophobia or phonophobia [