Routine versus ad hoc screening for acute stress following injury: who would benefit and what are the opportunities for prevention

Table 2 Sensitivity, specificity, and power to predict 9 PTSD cases at month one using the ASD symptomatology

DSM-IV ASD criteria	Sensitivity	Specificity	PPV	NPV
ASD symptoms using routine screening
B. Dissociation	0.78	0.43	0.31	0.86
C. Re-experiencing/Intrusion	0.78	0.67	0.44	0.90
D. Avoidance	0.78	0.48	0.33	0.87
E. Anxiety/Hyperarousal	0.93	0.19	0.28	0.89
F. Impairment	0.86	0.17	0.26	0.78
Subsyndromal ASD using routine screening
C + D + E	0.64	0.71	0.43	0.86
ASD diagnosis using routine screening
B + C + D + E + F + 2 day	0.43	0.83	0.46	0.81
Ad hoc referral practice
Consultation with psychiatry	0.14	0.95	0.50	0.77

PPV: positive predictive value; NPV: negative predictive value.
The accuracy of PTSD classification characterized by ad hoc referral with psychiatry was measured in reference to the participants SASRQ response score.

ISSN: 1752-2897