Fibromyalgia Syndrome on Patients With Chronic Migraine

The patients will be evaluated for central sensitization with Central Sensitization Inventory. The Central Sensitization Inventory assesses 25 health-related symptoms. Responses are recorded about the frequency of each symptom, with a Likert scale from 0 (never) to 4 (always), resulting in a total possible score of 100. Higher scores are associated with a higher degree of self-reported symptomology.

The patients will be evaluated for headache-related disability with The Migraine Disability Assessment Test. Migraine Disability Assessment scores (numerical scores represent number of days patients missed or lost productivity at work or school, as well as missed days from family/social/leisure activities, and range from little or no disability (0-5) to severe disability (>20).

The patients will be evaluated for the impact of headache on quality of life with 6-item short-form Headache Impact Test. This test is a patient-reported outcome measure used to measure the impact and effect of headache on the ability to function normally in daily life. It consists of 6 questions, total scores may range from 36 to 78 and higher scores reflecting greater impact.

The patients will be evaluated for allodynia with the Allodynia Symptom Checklist. The Allodynia Symptom Checklist include 12 questions about the frequency of various allodynia symptoms in association with headache attacks. Instead of using a dichotomous option (yes or no), the response categories are "never," "rarely," "less than half the time," and "half the time or more." In addition, subjects can also indicate that an item "does not apply to me." That option is used by someone who never shaved their face or someone who never wore a ponytail.

The patients will be evaluated for the quality of life with The Short Form-36. This form is composed of 36 items and eight subscales to evaluate quality of life (physical functioning, role-physical, bodily pain, general health, vitality, social functioning, role-emotional, and mental health). The scores of the subscales range between 0 and 100, and higher scores indicate higher quality of life.

The patients will be evaluated for sleep quality with the Pittsburgh Sleep Quality Index. It contains 19 self-reported items and 5 items to be completed by a bed partner or roommate, if possible. Scores range from 0 to 3, and are summed to obtain a global score, which ranges from 0 to 21. Higher scores indicate greater sleep disturbance.

The patients will be evaluated for anxiety and depression with Hospital Anxiety and Depression Scale. The scale is a fourteen-item scale with seven items each for anxiety and depression subscales. Scoring for each item ranges from zero to three. A subscale score >8 denotes anxiety or depression.

The quality of life and functional status of patients with fibromyalgia syndrome will be evaluated with the Fibromyalgia Impact Questionnaire. In this scale, 10 different characteristics are measured, including physical function, well-being, inability to work, difficulty at work, pain, fatigue, morning tiredness, stiffness, anxiety, and depression. The maximum score is 100, and increased score represents decreased functionality.

Date of birth, education level, body mass index, occupation, marital status, socioeconomic status, age of onset of migraine complaints, descriptive information about migraine attacks (type (with or without aura), duration of attacks, average number of days with pain, pain severity, accompaniments) will be questioned. In addition, if the patient meets the diagnostic criteria of fibromyalgia syndrome, symptom duration and average body pain severity in the last 3 months will be questioned.