Prevalence and Incidence of Prolactinoma

Prolactinoma Prevalence: Book Excerpts

• Causes and incidence - Amenorrhea

Incidence (annual) of Prolactinoma:

less than 14 per 100,000 (the rate for pituitary tumors) ... see also overview of Prolactinoma.

Incidence Rate:

approx 1 in 7,142 or 0.01% or 38,080 people in USA [Source statistic for calcuation: "less than 14 per 100,000 (the rate for pituitary tumors)" -- see also general information about data sources]

Incidence extrapolations for USA for Prolactinoma:

38,080 per year, 3,173 per month, 732 per week, 104 per day, 4 per hour, 0 per minute, 0 per second. [Source statistic for calculation: "less than 14 per 100,000 (the rate for pituitary tumors)" -- see also general information about data sources]

Prevalance of Prolactinoma:

Clinically significant pituitary tumors affect the health of approximately 14 out of 100,000 people. (Source: excerpt from Prolactinoma: NIDDK)

Prevalence/Incidence of Prolactinoma: Online Medical Books

16 MEDICAL BOOKS ONLINE! Review excerpts from medical books online, free, without registration, for more information about the prevalence and/or incidence of Prolactinoma.

Amenorrhea: Causes and incidence
(Professional Guide to Diseases (Eighth Edition))

Amenorrhea is normal before puberty, after menopause, or during pregnancy and lactation; it’s pathologic at any other time. It usually results from anovulation due to hormonal abnormalities, such as decreased secretion of estrogen, gonadotropins, luteinizing hormone, and follicle-stimulating hormone; lack of ovarian response to gonadotropins; or constant presence of progesterone or other endocrine abnormalities.

Amenorrhea may also result from the absence of a uterus, endometrial damage, or from ovarian, adrenal, or pituitary tumors. It’s also linked to emotional disorders and is common in patients with severe disorders, such as depression and anorexia nervosa. Mild emotional disturbances tend merely to distort the ovulatory cycle, while severe psychic trauma may abruptly change the bleeding pattern or may completely suppress one or more full ovulatory cycles. Amenorrhea may also result from malnutrition, intense exercise, and prolonged hormonal contraceptive use. The incidence of primary amenorrhea in the United States is less than 1%. The incidence of secondary amenorrhea (due to some other cause than pregnancy) is about 4%.

» READ BOOK EXCERPT ONLINE »

Source: Professional Guide to Diseases (Eighth Edition), 2005

About prevalence and incidence statistics:

The term 'prevalence' of Prolactinoma usually refers to the estimated population of people who are managing Prolactinoma at any given time. The term 'incidence' of Prolactinoma refers to the annual diagnosis rate, or the number of new cases of Prolactinoma 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.

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