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Table 4 Sensitivity and specificity values for different cut-off scores for the Chalder Fatigue Scale

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

95% CI

≥ 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

59.371.9

85.95

80.990.1

≥ 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

  1. CI: Confidence interval, bold indicates the optimal cut-off value