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Table 1 Inclusion and exclusion criteria

From: Is performance in goal oriented head movements altered in patients with tension type headache?

Inclusion criteria Exclusion criteria
Tension-type headache subjects Rheumatoid arthritis
Fulfilling criteria of the International Headache Society (IHS) for TTH: Impairment of vestibular system
Visual impairment
Headache lasting from 30 minutes to 7 days Hearing impairment
Headache has at least two of the following characteristics: Other types of headache
1. bilateral location Present episode of headache
2. pressing/tightening (non-pulsating) quality Neck pain as main complaint
3. mild or moderate intensity Neck trauma
4. not aggravated by routine physical activity such as walking or climbing stairs Active site of pain
Both of the following: Chronic pain syndrome
1. no nausea or vomiting (anorexia may occur) Whiplash associated disorders
2. no more than one of photophobia or phonophobia  
Not attributable to another disorder  
Experiencing at least 1 episode/month
Control subjects
No headache