Table 3 Diagnostic test characteristics for applying Age Adjusted Threshold after exclusions
Statistic | 95% Confidence Interval (all VTE) | 95% Confidence Interval (DVT only) | 95% Confidence Interval (PE only) |
|---|---|---|---|
Sensitivity | 98.67% (96.17–99.73) | 99.28% (96.06–99.98) | 97.70% (91.94–99.72) |
Specificity | 31.09% (28.24- 34.05) | 33.43 (29.95–37.05) | 25.73% (20.94–31.01) |
Positive likelihood ratio | 1.43 (1.37–1.50) | 1.49 (1.41–1.57) | 1.32 (1.22–1.42) |
Negative likelihood ratio | 0.04 (0.01–0.13) | 0.02 (0.00–0.15) | 0.09 (0.02–0.36) |
Positive predictive value | 24.4% (23.46- 25.09) | 22.77% (21.83–23.74) | 27.16% (25.73–28.63) |
Negative predictive value | 99.00% (97.13–99.69) | 99.58% (21.83–23.74) | 97.53% (90.83–99.37) |
Disease prevalence | 18.28 16.17–20.55 | 16.51 (14.06–19.19) | 22.08 (18.08–26.51) |