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Table 2 Accuracy of PQ-B total score and distress score in screening CHR

From: Screening of the college students at clinical high risk for psychosis in China: a multicenter epidemiological study

PQ-B cutoff Sensitivity (%) Specificity (%) YIa LR + a AUCa 95% CI p
Total score
  ≥ 10 94.4 61.9 0.56 2.48 0.842 0.806–0.877 < 0.001
  ≥ 11 91.7 65.6 0.57 2.67 0.842 0.806–0.877 < 0.001
  ≥ 12 91.7 68.9 0.61 2.95 0.842 0.806–0.877 < 0.001
  ≥ 13b 91.7 71.5 0.63 3.22 0.842 0.806–0.877 < 0.001
  ≥ 14 87.5 74.1 0.62 3.38 0.842 0.806–0.877 < 0.001
  ≥ 15 86.1 76.3 0.62 3.63 0.842 0.806–0.877 < 0.001
Distress score
  ≥ 43 90.3 78.2 0.69 4.14 0.900 0.863–0.937 < 0.001
  ≥ 44 90.3 79.2 0.70 4.34 0.900 0.863–0.937 < 0.001
  ≥ 45 90.3 80.3 0.71 4.58 0.900 0.863–0.937 < 0.001
  ≥ 46b 90.3 81.2 0.72 4.80 0.900 0.863–0.937 < 0.001
  ≥ 47 83.3 82.2 0.66 4.68 0.900 0.863–0.937 < 0.001
  ≥ 48 79.2 83.0 0.62 4.66 0.900 0.863–0.937 < 0.001
  1. aYI Youden’s index, LR+ positive likelihood ratio, AUC area under the curve
  2. bcutoff point with the highest YI