Summary
The incidence of venous thromboembolism has been studied during one year in a defined
population of 342,000 inhabitants. The overall incidence (95% confidence interval)
of venous thromboembolism was found to be 1.83 per thousand per year (1.69 to 1.98).
The incidences of deep venous thrombosis and pulmonary embolism were 1.24 per thousand
per year (1.12 to 1.36) and 0.60 per thousand per year (0.52 to 0.69), respectively.
The incidence of venous thromboembolism rose markedly with increasing age for both
sexes; over the age of 75, the annual incidence reached 1 per 100. Sixty three percent
of the patients were at home when venous thromboembolism occurred. Of these, sixteen
percent had been previously hospitalised within three months. These results raise
concerns on identification of medical patients at high risk and effective prophylaxis.
Keywords
Venous thromboembolism - epidemiology