Estimates suggest that about 1% of women and teenage girls in the United States have POI.1 Researchers estimate that, categorized by age, POI affects:
- 1 in 10,000 women by age 20
- 1 in 1,000 women by age 30
- 1 in 250 women by age 35
- 1 in 100 women by age 402
Several factors can affect a woman's risk for POI:
- Family history. Women who have a mother or sister with POI are more likely to have the disorder. About 10% to 20% of women with POI have a family history of the condition.2
- Genes. Some changes to genes and genetic conditions put women at higher risk for POI. Research suggests that these disorders and conditions cause as much as 28% of POI cases.3 For example:
- Women who carry a variation of the gene for Fragile X syndrome are at higher risk for Fragile X-Associated POI (FXPOI). 4 Fragile X syndrome is the most common inherited form of intellectual and developmental disability, but women with FXPOI do not have Fragile X syndrome itself. Instead, they have a change or mutation in the same gene that causes Fragile X syndrome, and this change is linked to FXPOI. Visit the What is the connection between POI and Fragile X syndrome? section of the site for more information.
- Most women who have Turner syndrome develop POI. Turner syndrome is a condition in which a girl or woman is partially or completely missing an X chromosome. Most women are XX, meaning they have two X chromosomes. Women with Turner syndrome are X0, meaning one of the X chromosomes is missing.
- Other factors. Autoimmune diseases, viral infections, chemotherapy, and other treatments also may put a woman at higher risk of POI.2
- Coulam, C. B., & Stern, J. J. (1991). Immunology of ovarian failure. American Journal of Reproductive Immunology, 25¸169–174. [top]
- Cordts, E. B., Christofolini, D. M., Dos Santos, A. A., Bianco, B., & Barbosa, C. P. (2011). Genetic aspects of premature ovarian failure: A literature review. Archives of Gynecology and Obstetrics, 283, 635–643. [top]
- Fridovich-Keil, J. L., Gubbels, C. S., Spencer, J. B., Sanders, R. D., Land, J. A., & Rubio-Gozalbo, E. (2011). Ovarian function in girls and women with GALT-deficiency galactosemia. Journal of Inherited Metabolic Disease, 34, 357–366. [top]
- Trans-NIH Fragile X Research Coordinating Group and Scientific Working Groups. (2008). National Institutes of Health research plan on Fragile X syndrome and associated disorders. Retrieved January 4, 2012, from http://nichd.nih.gov/publications/pubs/documents/NIH_Research_Plan_on_Fragile_X_and_Assoc_Disorders-06-2009.pdf (PDF - 439 KB) [top]