TABLE 5.

AUC, sensitivity, and specificity on the PPQ

Cut score	Sensitivity	Specificity	PPV	NPV
1-Month AUC = 0.51
3	0.54	0.52	0.31	0.74
4	0.37	0.68	0.31	0.73
5	0.13	0.88	0.31	0.72
3-Month AUC = 0.54
3	0.58	0.53	0.18	0.87
4	0.45	0.71	0.22	0.87
5	0.08	0.89	0.12	0.84
6-Month AUC = 0.51
3	0.52	0.50	0.14	0.86
4	0.39	0.66	0.16	0.87
5	0.09	0.89	0.12	0.86
12-Month AUC = 0.55
3	0.58	0.53	0.14	0.90
4	0.42	0.69	0.16	0.90
5	0.15	0.90	0.17	0.89

Note: The sample consists of those who did not receive treatment.

Abbreviations: AUC, area under the curve; NPV, negative predictive value; PPQ, Predicting PTSD Questionnaire; PPV, positive predictive value.