From: Dimensionality, psychometric properties, and population-based norms of the Turkish version of the Chalder Fatigue Scale among adults
Cut off score
Sensitivity
95% CI
Specificity
≥ 10
80.34
74.7–85.2
55.79
49.3–62.1
≥ 11
76.50
70.5–81.8
63.22
56.8–69.3
≥ 12
65.81
59.3–71.9
85.95
80.9–90.1
≥ 13
57.69
51.1–64.1
90.91
86.6–94.2
≥ 14
50.43
43.8–57.0
96.28
93.1–98.3