Figure 4. Percentiles of the results of quality of life evaluation by three questionnaires applied to 40 fibromyalgia patients and 40 healthy controls. FIQ = Fibromyalgia Impact Questionnaire; SF-36 = Medical Outcomes Study 36-item Short Form Health Survey; STAI = State-Trait Anxiety Inventory. FIQI-T = FIQ Index — Test; SFI-T = SF-36 Index — Test; IDI-T = STAI Index — Test; FIQI-C = FIQ Index — Control; SFI-C = SF-36 Index — Control; IDI-C = STAI Index — Control.
