Hospital-Acquired Venous Thromboembolism (VTE) Incidence Calculator

Society of Hospital Medicine (SHM)
Philadelphia, Pennsylvania, USA


Use this calculator tool to estimate the number of hospital-acquired venous thromboembolism (VTE) at your hospital, and the proportion that are potentially preventable.



According to the Society of Hospital Medicine, venous thromboembolic disease, ranging from asymptomatic deep vein thrombosis (DVT) to massive pulmonary embolism (PE), is a significant cause of morbidity and mortality in hospitalized patients. Many clinical trials have provided evidence that primary thromboprophylaxis reduces the incidence of DVT and PE.[1] Unfortunately, numerous studies have also shown that the majority of hospitalized patients with risk factors for DVT do not receive appropriate prophylaxis.[2-4]



[1] Geerts WH, Pineo GF, Heit JA, Bergqvist D, Lassen MR, Colwell CW, Ray JG. Prevention of venous thromboembolism: The seventh ACCP conference on antithrombotic and thrombolytic therapy. Chest. 2004;126(3 Suppl):338S-400S.
[2] Stratton MA, Anderson FA, Bussey HI, Caprini J, Comerota A, Haines ST, Hawkins DW, O'Connell MB, Smith RC, Stringer KA. Prevention of venous thromboembolism: Adherence to the 1995 american college of chest physicians consensus guidelines for surgical patients. Arch Intern Med. 2000;160(3):334-340.
[3] Anderson FA, Jr., Wheeler HB, Goldberg RJ, Hosmer DW, Forcier A, Patwardhan NA. Changing clinical practice. Prospective study of the impact of continuing medical education and quality assurance programs on use of prophylaxis for venous thromboembolism. Arch Intern Med. 1994;154(6):669-677.
[4] Walker A, Campbell S, Grimshaw J. Implementation of a national guideline on prophylaxis of venous thromboembolism: A survey of acute services in Scotland. Thromboembolism prevention evaluation study group. Health Bull (Edinb). 1999;57(2):141-147.
Downloas the tool from the Society of Hospital Medicine website. Enter the number of beds at your hospital and the current VTE prophylaxis rate in the specified cells, and the tool will automatically calculate the incidence rate. Download the tool for complete instructions.
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