Diagnostic performance and optimal cut-off scores of the Massachusetts youth screening instrument-second version in a sample of Swiss youths in welfare and juvenile justice institutions

Table 1 Receiver operating characteristics estimates and optimal ‘caution’ cut-off scores of MAYSI-2 scales (Total Sample)

Total sample
	Sens/Spec	PPV/NPV	AUC (95% CI)	Optimal cut-off^a	Current cut-off^b
Any substance use (K-SADS-PL)
MAYSI-2 alcohol/drug use	.76/.75	.35/.95	.83*** (.79–.87)	4	4
Any disruptive behavior (K-SADS-PL)
MAYSI-2 angry-irritable	.59/.55	.54/.60	.61*** (.55–.66)	5	5
Any affective (K-SADS-PL)
MAYSI-2 depressed-anxious	.52/.63	.21/.88	.62*** (.56–.69)	4	3
MAYSI-2 somatic complaints	.58/.48	.17/.86	.53 ns (.46–.60)	(2)	3
Any anxiety (K-SADS-PL)
MAYSI-2 depressed-anxious	.63/.64	.17/.93	.67*** (.59–.74)	4	3
MAYSI-2 somatic complaints	.58/.68	.18/.93	.67*** (.60–.74)	3	3
Suicide ideation/suicide attempts (K-SADS-PL)
MAYSI-2 suicide ideation	.74/.67	.39/.90	.75*** (.70–.81)	2	2

MAYSI-2 Massachusetts Youth Screening Instrument-second version, K-SADS-PL Schedule for Affective Disorders and Schizophrenia for School-Age Children Present and Lifetime version, Sens sensitivity rate, Spec specificity rate, PPV positive predictive value, NPV negative predictive value, AUC area under the curve, CI confidence interval
*** p < .001; ns not significant
^aThe optimal ‘caution’ cut-off scores are based on the difference between the sensitivity and specificity value to find the cut-off score with the lowest difference between both values
^bThe current cut-off scores are based on the results of the USA National Norms Study for the MAYSI-2 [17]

ISSN: 1471-244X