What is the prevalence of hereditary antithrombin (AT) deficiency?

1 in 500 to 1 in 5000 in the overall population. Learn more here.

Per Pabinger and Thaler:

The estimated prevalence of AT deficiency is about 0.02% to 0.2% in the general population and ;1% to 5% in patients with venous thromboembolism.