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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−

Total

Predictive values

VCLU+ 

15

10

25

PPV 60% [CI 95% 41–76%]

VCLU−

3

74

77

NPV 96%

[CI 95% 89–99%]

Total

18

84

102

 
 

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