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Table 2 Socio-demographic and clinical characteristics of patients who participated in the validation study (N = 588)

From: Improving the primary care physicians' decision making for fibromyalgia in clinical practice: development and validation of the Fibromyalgia Detection (FibroDetect®) screening tool

Variable Investigational group Two control groups
ACR + (N = 137) ACR' (N = 139) FM (N = 158) Non-FM (N = 154)
Country - N (%) Germany 45 (32.8) 62 (44.6) 41 (25.9) 36 (23.4)
France 92 (67.2) 77 (55.4) 117 (74.1) 118 (76.6)
Age (years) N 137 139 158 154
Mean (SD) 51.5 (11.0) 52.3 (14.0) 52.0 (11.6) 55.3 (14.6)
Median (Q1 - Q3) 52.0 (46.0 - 58.0) 52.0 (43.0 - 61.0) 53.0 (44.0 - 59.0) 55.0 (46.0 - 65.0)
Min - Max 19.0 - 87.0 19.0 - 89.0 25.0 - 87.0) 18.0 - 83.0)
Gender - N (%) Female 118 (86.1) 114 (82.0) 145 (91.8) 109 (70.8)
Time since first chronic widespread pain (years) N 129 137 152 -
Mean (SD) 6.1 (6.8) 5.5 (7.7) 9.9 (9.6)
Median (Q1 - Q3) 4.0 (1.0 - 9.0) 3.0 (1.0 - 5.0) 7.0 (4.0 - 13.0)
Min - Max 0.0 - 36.0 0.0 - 42.0 0.0 - 62.0
Number of doctors already visited for pain and/or fatigue - N (%) First doctor 7 (5.1) 6 (4.3) 4 (2.5) -
2-5 106 (77.4) 113 (81.3) 95 (60.1)
> 5 21 (15.3) 20 (14.4) 52 (32.9)
Number of tender points - N (%) < 11 18 (13.1) 124 (89.2) - -
≥ 11 119 (86.9) 15 (10.8)