Risk assessment scales

sensitivity

specificity

negative predictive value

positive predictive value

Caprini scale

73.4%

70.9%

71.2%

72.3%

Padua scale

85.6%

32.2%

55.8%

69.1%

X²

6.294

7.023

5.493

0.516

P

<0.05

<0.05

<0.05

>0.05