Fibromyalgia impact questionnaire
pain, disability, FM
FIBROMYALGIA
To assess disability related to FM, the Fibromyalgia Impact Questionnaire was used. It is a valid instrument for measuring the impairement associated with FM in the daily lives of patients. Items in the part 1 of the questionnaire (item 1a to 1j) exploring functional abilities ranged from 0 to 3 (the average of the questions to which the patient answered). Patients responded on a Likert scale from 0 (always) to 3 (never) assessing their ability to perform given activity during the previous week. (e.g., “during the last week, could you do the market?). In part 2 (items 2 and 3) patients reported the number of days they felt well and the number of days they missed work during the previous week. In the part 3 (items 4 to 10) patients are asked to report their current condition (e.g.“over the past seven days how much pain did you have?”) on the visual analogue scales of 10 cm. The total score ranges from 0 to 100. A higher score on the Fibromyalgia Impact Questionnaire reflects a higher level of functional disabilities related to FM. Internal consistency of the questionnaire in the present study was good (