“…The annual incidence of DVT is in between 69 to 139 cases per 100,000 people in general population, (1) whereas in hospitalised patients it is 350 per 100,000 admissions. (2) In another study, it has been observed that one in every nine persons develop DVT when younger than 80 years and clinically recognised VTE account for one of every twenty deaths in those older than 50 years. (3) The incidence is rare in children with less than one in 100,000 a year.…”