Table 3.

Validity of the questionnaires, using a clinical and borderline CBCL TPS as criteria

	PSYBOBA	PSC	SDQ
Pearson's r	0.81	0.81	0.77
Kappa (cut-off point used)	0.59 (>14)	0.52 (>20)	0.53 (>11)
AUC (95% CI)	0.96 (0.94-0.98)	0.93 (0.92-0.96)	0.95 (0.93-0.98)
Criterion: Clinical TPS
All children
Cut-off point	>14	> 20	> 11
Sensitivity (95% CI)	0.86 (0.78-0.94)	0.78 (0.68-0.88)	0.86 (0.77-0.95)
Specificity (95% CI)	0.91 (0.89-0.93)	0.92(0.89-0.93)	0.90 (0.88-0.92)
Positive Predictive value	0.51 (0.41-0.61)	0.45 (0.35-0.55)	0.43 (0.34-0.52)
Children currently not under treatment
Cut-off point	> 14	>19	>11
Sensitivity (95% CI)	0.82 (0.71-0.93)	0.81 (0.69-0.93)	0.80 (0.67-0.93)
Specificity (95% CI)	0.92 (0.91-0.95)	0.91 (0.89-0.93)	0.92 (0.90-0.94)
Positive Predictive value	0.44 (0.33-0.55)	0.40 (0.30-0.51)	0.37 (0.27-0.48)
Criterion: Borderline TPS
All children
Cut-off point	>13	>18	>10
Sensitivity (95% CI)	0.73 (0.64-0.82)	0.72 (0.64-0.80)	0.79 (0.71-0.87)
Specificity (95% CI)	0.91 (0.89-0.93)	0.91 (0.89-0.93)	0.90 (0.88-0.92)
Positive Predictive value	0.58 (0.49-0.67)	0.62 (0.53-0.70)	0.59 (0.49-0.68)
Children currently not under treatment
Cut-off point	>13	> 17	>10
Sensitivity (95% CI)	0.66 (0.55-0.77)	0.74 (0.65-0.83)	0.75 (0.65-0.85)
Specificity (95% CI)	0.91 (0.89-0.93)	0.91 (0.89-0.93)	0.90 (0.89-0.93)
Positive Predictive value	0.48 (0.38-0.58)	0.57 (0.47-0.66)	0.49 (0.39-0.59)