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Table 4 Total score of the 14 items at baseline: area under the ROC Curve (AUC), sensitivity and specificity in identifying current and future self-harm

From: Could a brief assessment of negative emotions and self-esteem identify adolescents at current and future risk of self-harm in the community? A prospective cohort analysis

  Males Females
  AUC Cut-off * % scoring above cut-off * Sens (%) Spec (%) Corr class (%) AUC Cut-off * % scoring above cut-off * Sens (%) Spec (%) Corr class (%)
Current self-harm 0.81       0.87      
  ≥7 40.9 85.71 56.91 58.91   ≥10 34.7 90.56 66.04 68.77
  ≥8 33.9 83.93 63.96 65.35   ≥11 29.7 87.22 71.88 73.58
Suggested cut-off   ≥9 27.1 77.68 71.08 71.53   ≥12 25.7 82.22 76.39 77.04
   ≥10 18.2 72.32 77.39 77.04   ≥13 22.7 77.22 80.35 80.00
  ≥11 14.7 67.86 82.05 81.06   ≥14 19.7 76.11 82.99 82.22
6 month self-harm 0.74       0.81      
  ≥7   79.84 56.77 58.54   ≥10   80.50 65.42 67.28
  ≥8   73.39 63.40 64.17   ≥11   76.00 71.13 71.13
  ≥9   67.74 70.64 70.42   ≥12   76.00 71.13 71.73
  ≥10   61.29 76.68 75.50   ≥13   68.50 79.93 78.52
  ≥11   57.26 81.57 79.70   ≥14   67.00 82.61 80.68
12 month self-harm 0.68       0.77      
  ≥7   67.77 55.72 56.62   ≥10   76.47 64.97 66.42
  ≥8   61.98 62.47 62.44   ≥11   72.06 70.69 70.86
  ≥9   57.02 69.70 68.75   ≥12   67.65 75.28 74.32
  ≥10   53.72 76.19 74.50   ≥13   60.78 78.88 76.67
  ≥11   48.76 80.80 78.40   ≥14   56.86 81.29 78.21
  1. *Cut-offs refer to total scores at baseline and their ability to identify those currently reporting self-harm or doing so 6 and 12 months later. Data shown for two points around the suggested baseline cut-off point for girls (≥12) and boys (≥9). Sens, Sensitivity, Spec, Specificity, Corr class, Correctly classified.
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BMC Public Health

ISSN: 1471-2458

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