Table 3.

Prediction results: WTCD, pain and trauma studies using different prediction models

Study and prediction model	Cutoff score	% Specificity	% Sensitivity	PV+	PV−	AUC	AUC 95% CI	P value
PTSD screens only
WTCD (N=2368)
SSSP	–	88.8	92.5	39.4	99.3	0.907	0.883–0.930	–
PCPS	–	82.2	93.7	29.3	99.4	0.880	0.856–0.903	–
Pain study (N=705)
SSSP	–	95.6	94.3	70.1	99.4	0.949	0.917–0.982	–
PCPS	–	95.6	94.3	70.1	99.4	0.949	0.917–0.982	–
Trauma study (N=225)
SSSP	–	85.9	65.4	38.3	94.9	0.757	0.645–0.869	–
PCPS	–	80.9	96.2	40.3	99.4	0.885	0.829–0.942	–
PTSD screens+risk factors
WTCD (N=2368)
SSSP+risk factors	124	89.4	92.5	40.7	99.4	0.945	0.930–0.959	<.0001
PCPS+risk factors	158	85.7	93.1	33.9	99.4	0.943	0.932–0.956	<.0001
Pain study (N=705)
SSSP+risk factors	124	95.6	92.9	69.8	99.2	0.965	0.944–0.985	.0725
PCPS+risk factors	158	95.6	92.9	69.8	99.2	0.970	0.956–0.985	.0516
Trauma study (N=225)
SSSP+risk factors	124	87.4	65.4	40.1	95.0	0.874	0.813–0.935	<.0001
PCPS+risk factors	158	86.9	92.3	48.6	98.8	0.929	0.892–0.965	.0063
PTSD screens+risk factors+demos
WTCD (N=2368)
SSSP+risk factors+demos	178	91.2	90.2	42.7	99.2	0.949	0.937–0.961	.0862
PCPS+risk factors+demos	194	88.1	91.9	38.0	99.2	0.945	0.934–0.955	.2497
Pain study (N=705)
SSSP+risk factors+demos	178	95.9	88.6	70.4	98.7	0.966	0.947–0.984	.7779
PCPS+risk factors+demos	194	95.9	87.1	70.1	98.6	0.972	0.958–0.985	.3673
Trauma study (N=225)
SSSP+risk factors+demos	178	90.5	61.5	46.3	94.6	0.883	0.829–0.938	.2337
PCPS+risk factors+demos	194	88.4	80.8	48.3	97.2	0.928	0.892–0.965	.8929

Demos=demographics.