#Swelling of entire leg: +1 point
#Localized tenderness along the deep venous system: +1 point
#Paralysis, [[paresis]], or recent cast immobilization of lower extremities: +1 point
#Recently bedridden ≥ 3 days, or major surgery requiring regional or general anesthetic in the past 12 weeks: +1 point
#Alternative diagnosis at least as likely: −2 points<ref name="Hargett"/>