Prevalence and Incidence of Gestational hypertension


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About prevalence and incidence statistics: The term 'prevalence' of Gestational hypertension usually refers to the estimated population of people who are managing Gestational hypertension at any given time. The term 'incidence' of Gestational hypertension refers to the annual diagnosis rate, or the number of new cases of Gestational hypertension diagnosed each year. Hence, these two statistics types can differ: a short-lived disease like flu can have high annual incidence but low prevalence, but a life-long disease like diabetes has a low annual incidence but high prevalence. For more information see about prevalence and incidence statistics.

Prevalance of Gestational hypertension: Hypertensive disorders of pregnancy, which affect an estimated five to eight percent of pregnancies in the United States, contribute significantly to serious complications for both the fetus and the mother.1

Prevelance of Gestational hypertension discussion: Although the proportion of pregnancies with gestational hypertension and eclampsia has remained about the same in the U.S. over the past decade, the rate of preeclampsia has increased by nearly one-third. This increase is due in part to a rise in the numbers of older mothers and of multiple births, where preeclampsia occurs more frequently. For example, in 1998 birth rates among women ages 30 to 44 and the number of births to women ages 45 and older were at the highest levels in 3 decades, according to the National Center for Health Statistics. Furthermore, between 1980 and 1998, rates of twin births increased about 50 percent overall and 1,000 percent among women ages 45 to 49; rates of triplet and other higher-order multiple births jumped more than 400 percent overall, and 1,000 percent among women in their 40s. 2

Footnotes:
1. excerpt from REPORT of the WORKING GROUP on RESEARCH on HYPERTENSION DURING PREGNANCY: NHLBI
2. excerpt from High Blood Pressure in Pregnancy: NHLBI

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