Statistics about Fragile-X Syndrome

Prevalence and incidence statistics for Fragile-X Syndrome:

See also prevalence and incidence page for Fragile-X Syndrome

Prevalance of Fragile-X Syndrome: approximately 1 per 8,000 females suffer from fragile X syndrome, Genetics Home Reference website

Prevalance Rate: approx 1 in 16,000 or 0.01% or 17,000 people in USA [about data]

Incidence (annual) of Fragile-X Syndrome: about 1 in 1500 males¹.

Incidence Rate: approx 1 in 3,000 or 0.03% or 90,666 people in USA [about data]

Incidence extrapolations for USA for Fragile-X Syndrome: 90,666 per year, 7,555 per month, 1,743 per week, 248 per day, 10 per hour, 0 per minute, 0 per second. Note: this extrapolation calculation uses the incidence statistic: about 1 in 1500 males¹.

About statistics:

This page presents a variety of statistics about Fragile-X Syndrome. The term 'prevalence' of Fragile-X Syndrome usually refers to the estimated population of people who are managing Fragile-X Syndrome at any given time. The term 'incidence' of Fragile-X Syndrome refers to the annual diagnosis rate, or the number of new cases of Fragile-X Syndrome 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.

Footnotes: 1. Pathophysiology of Disease, Stephen J. McPhee, Vishwanash R. Lingappa, Willim F. Ganong, Jack D. Lang, Prentice Hall, 1995