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Table 2 Contingency table of diagnostic performances of venous limited compression ultrasonography in 102 patients suspected to have a DVT

From: Evaluation of short training session for venous limited compression ultrasonography: prospective multicenter study

 DVT+DVT−TotalPredictive values
VCLU+ 151025PPV 60% [CI 95% 41–76%]
VCLU−37477NPV 96%
[CI 95% 89–99%]
Total1884102 
 Sensitivity
83%
[CI 95% 60–94%]
Specificity
88%
[CI 95% 79–93%]
  
  1. χ2 40.8, p = 10−9
  2. VLCU venous limited compression ultrasonography, DVT deep venous thrombosis, PPV positive-predictive value, NPV negative-predictive value