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Table 2 Operating characteristics of GAD-7 for different cut-off points.

From: Cultural adaptation into Spanish of the generalized anxiety disorder-7 (GAD-7) scale as a screening tool

Cut-off point

Sensitivity

Specificity

PPV

NPV

Cases

8

93.4

85.8

88.6

92.9

53.8

9

91.5

90.6

90.7

91.4

50.5

10

86.8

93.4

92.9

87.6

46.7

11

79.2

95.3

94.4

82.1

42.0

12

74.5

96.2

95.2

79.1

39.2

13

67.9

97.2

96.0

75.2

35.4

14

62.3

100.0

100.0

72.6

31.1

  1. Note: PPV = Positive predictive value; NPV = Negative predictive value. All values expressed as %.