BMC Public Health

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

^*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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ISSN: 1471-2458

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