Table 1 Sensitivity and specificity (95% confidence intervals) for prototypes and scales at designated cut-offs

Depression

   Full Scale (CES-D)

≥ 16

87.5% (71.0% - 96.5%)

72.4% (66.9% - 77.5%)

0.86 (0.81 - 0.92)

   Short form scale (CES-D SF)

≥ 8

84.4% (67.2% - 94.7%)

69.7% (64.0% - 74.9%)

0.84 (0.78 - 0.90)

   Depression prototype

≥ 2

81.3% (63.6% - 92.8%)

59.0% (53.1% - 64.7%)

0.73 (0.64 - 0.82)

   Depression short prototype

≥ 2

50.0% (31.9% - 68.1%)

75.5% (70.2% - 80.4%)

0.64 (0.54 - 0.73)

Generalised Anxiety Disorder

   Full Scale (GAD-7)

≥ 10

60.6% (42.1% - 77.1%)

87.6% (83.3% - 91.1%)

0.83 (0.76 - 0.90)

   Short form scale (GAD-2)

≥ 3

57.6% (39.2% - 74.5%)

86.3% (81.8% - 90.0%)

0.81 (0.73 - 0.89)

   GAD prototype

≥ 3

90.9% (75.7% - 98.1%)

72.1% (66.5% - 77.2%)

0.87 (0.83 - 0.92)

   GAD short prototype

≥ 2

75.8% (57.7% - 88.9%)

66.0% (60.2% - 71.4%)

0.74 (0.65 - 0.83)

Social phobia

   Full Scale (SPIN)

≥ 19

88.9% (51.8% - 99.7%)

81.3% (76.6% - 85.5%)

0.92 (0.83 - 1.00)

   Short form scale (Mini-SPIN)

≥ 6

66.7% (29.9% - 92.5%)

85.8% (81.4% - 89.4%)

0.90 (0.81 - 0.99)

   Social phobia prototype

≥ 3

66.7% (29.9% - 92.5%)

86.7% (82.4% - 90.2%)

0.81 (0.63 - 0.99)

   Social phobia short prototype

≥ 2

33.3% (7.5% - 70.1%)

84.8% (80.3% - 88.6%)

0.59 (0.43 - 0.76)

Panic disorder

   Full Scale (PDSS-SR)

≥ 8

66.7% (22.3% - 95.7%)

95.6% (92.8% - 97.6%)

0.87 (0.69 - 1.00)

   Short form scale (PDSS-SR items 1 & 2)

≥ 4

66.7% (22.3% - 95.7%)

90.3% (86.5% - 93.3%)

0.88 (0.69 - 1.00)

   Panic disorder prototype

≥ 2

50.0% (11.8% - 88.2%)

81.3% (76.5% - 85.4%)

0.67 (0.44 - 0.91)

   Panic disorder short prototype

≥ 2

83.3% (35.9% - 99.6%)

51.9% (46.3% - 57.5%)

0.73 (0.51 - 0.95)