Predicting posttraumatic stress disorder in children and parents following accidental child injury: evaluation of the Screening Tool for Early Predictors of Posttraumatic Stress Disorder (STEPP)

Table 2 Performance of the STEPP in predicting PTSD at 3 months, at different cut-off scores

Cut-off	Sensitivity (95% CI)	Specificity (95% CI)	PPV (95% CI)	NPV (95% CI)
Child diagnosis (ADIS-C/P)
2	0.82 (0.57-0.96)	0.28 (0.20-0.36)	0.13 (0.07-0.21)	0.92 (0.79-0.98)
3	0.65 (0.38-0.86)	0.62 (0.53-0.70)	0.18 (0.09-0.30)	0.93 (0.85-0.97)
4	0.41 (0.19-0.67)	0.87 (0.80-0.92)	0.29 (0.13-0.51)	0.92 (0.86-0.96)
Child self-report (CRIES)
2	0.87 (0.66-0.97)	0.29 (0.21-0.38)	0.19 (0.12-0.28)	0.92 (0.79-0.98)
3	0.61 (0.39-0.80)	0.62 (0.53-0.71)	0.23 (0.13-0.36)	0.89 (0.81-0.95)
4	0.43 (0.23-0.65)	0.89 (0.82-0.94)	0.43 (0.23-0.65)	0.89 (0.82-0.94)
Parent self-report (IES-R)
2	0.92 (0.64-0.99)	0.21 (0.14-0.30)	0.11 (0.06-0.19)	0.96 (0.81-0.99)
3	0.54 (0.25-0.81)	0.57 (0.48-0.66)	0.12 (0.05-0.23)	0.92 (0.84-0.97)
4	0.23 (0.05-0.54)	0.88 (0.81-0.93)	0.17 (0.04-0.41)	0.91 (0.85-0.96)

STEPP - Screening Tool for Early Predictors of PTSD, PTSD - Posttraumatic Stress Disorder, AUC - Area Under the Curve, CI - Confidence Interval, PPV - Positive Predictive Value, NPV - Negative Predictive Value, ADIS - Anxiety Disorders Interview Schedule-Child/Parent, CRIES - Children’s Revised Impact of Event Scale, IES-R - Impact of Event Scale-Revised.

ISSN: 1471-244X