Table 3.
Study and Prediction Model Used | Cut-off Score | % Specificity | % Sensitivity | PV+ | PV− | AUC | AUC 95% CI | P-value |
---|---|---|---|---|---|---|---|---|
PTSD Screen only | ||||||||
WTCD (N = 1352) | ||||||||
PCPS | 100 | 80.8 | 95.6 | 31.6 | 99.5 | 0.882 | 0.860–0.904 | -- |
Pain and Trauma Studies (N = 574) | ||||||||
PCPS | 100 | 92.4 | 94.6 | 64.8 | 99.1 | 0.935 | 0.902–0.968 | -- |
PTSD Screen + Risk Factors | ||||||||
WTCD (N = 1352) | ||||||||
PCPS + Risk Factors | 139 | 85.5 | 93.0 | 37.4 | 99.3 | 0.941 | 0.928–0.955 | <0.0001 |
Pain and Trauma Studies (N = 574) | ||||||||
PCPS + Risk Factors | 139 | 93.0 | 90.5 | 65.7 | 98.5 | 0.965 | 0.950–0.980 | 0.0084 |
PTSD Screen + Risk Factors + Demographics | ||||||||
WTCD (N = 1352) | ||||||||
PCPS + Risk Factors + Demos | 166 | 87.5 | 91.2 | 40.4 | 99.1 | 0.943 | 0.929–0.956 | 0.4140 |
Pain and Trauma Studies (N = 574) | ||||||||
PCPS + Risk Factors + Demos | 166 | 94.0 | 83.8 | 65.4 | 97.5 | 0.965 | 0.951–0.980 | 0.8142 |
AUC = Area under ROC curve; PV+ = Predictive value of positive test; PV− = Predictive value of negative test; PCPS = Primary care PTSD Scale; WTCD = World Trade Center Disaster; Demos = Demographics.