venography showed that leg compression reduced the incidence of calf vein thrombosis from 45 per cent ( 21/47 ) in untreated patients to 16 per cent ( 7/43 ) ( p less than 0.005 ) , but not that of proximal ( i.e . popliteal or femoral ) vein thrombosis , which occurred in 23 per cent of treated and 26 per cent of untreated patients .
C0023216
leg
C0015809
femoral