Research Article

Gender Differences in Symptoms, Health-Related Quality of Life, Sleep Quality, Mental Health, Cognitive Performance, Pain-Cognition, and Positive Health in Spanish Fibromyalgia Individuals: The Al-Ándalus Project

Table 6

Test characteristics of tender points’ criteria for classifying fibromyalgia using clinical diagnosis as the gold standard in both fibromyalgia and nonfibromyalgia women () and men ().

Tender points locationWomenMen
Optimal cut-offAUCSensitivitySpecificityOptimal cut-offAUCSensitivitySpecificity

Occiput3.70.930.860.894.20.960.890.93
Anterior cervical2.40.920.800.922.90.970.960.91
Trapezius4.30.940.870.914.70.990.930.94
Supraspinatus4.60.950.820.956.20.990.960.94
Second rib3.30.910.820.855.00.981.000.89
Lateral epicondyle4.80.920.780.945.60.970.960.87
Gluteal4.10.930.810.936.50.971.000.89
Great trochanter3.90.930.790.975.60.960.890.93
Knee3.20.930.810.915.00.950.930.83

The optimal cut-off was selected using the best balanced accuracy ([sensitivity + specificity]/2) for the different possible cut-offs. Each tender point consists of the mean of left and right tender body sides (e.g., occiput = (occiput right + occiput left)/2). AUC, area under the curve. All .