Who gets primary pulmonary hypertension?

The incidence of primary pulmonary hypertension is 8 out of 100,000 people. Women between the ages of 20 and 40 are most at risk. There is often a family history of primary pulmonary hypertension or sudden death. Primary pulmonary hypertension can occur at any age, especially in teenagers. Recently there has been an increase in patients with primary pulmonary hypertension in people who have taken "Phen-fen," a combination diet drug.

Source: www.pphclaims.com