The information below shows a list of types of X Chromosome Disorders, with information as to the prevalence of each of these types. Estimates of the people affected are calculated based on the available statistic.
| Disease | Prevalence Estimate | US people estimate | Statistic Used for Calculation |
| $Chromosome disorders affecting all or most of the X chromosome:$ | N/A | N/A | No information |
| Jacobs syndrome | approx 1 in 2,000 or 0.05% or 136,000 people in USA | 136,000 | 1-in-2000 approximately. |
| Klinefelter syndrome | approx 1 in 500 or 0.20% or 544,000 people in USA | 544,000 | 1 per 500 - 1,000 males are affected by Klinefelter syndrome, Genetics Home Reference website |
| Triple-X syndrome | approx 1 in 1,000 or 0.10% or 272,000 people in USA | 272,000 | 1 per 1,000 newborn girls suffer from triple X syndrome, Genetics Home Reference website |
| Turner Syndrome | approx 1 in 2,500 or 0.04% or 108,800 people in USA | 108,799 | 1 per 2,500 live female births are affected by Turner syndrome, Genetics Home Reference website |
| Intersex conditions | N/A | N/A | No information |
| $Genetic disorders affecting a single gene on the X chromosome:$ | N/A | N/A | No information |
| X-linked Recessive Genetic Diseases | N/A | N/A | No information |
| X-linked Dominant Genetic Diseases | N/A | N/A | No information |
| Fragile-X Syndrome | approx 1 in 16,000 or 0.01% or 17,000 people in USA | 90,666 | approximately 1 per 8,000 females suffer from fragile X syndrome, Genetics Home Reference website |
| X-Linked Agammaglobulinemia | approx 1 in 100,000 or 0.00% or 2,720 people in USA | 2,720 | 1-in-100,000 |
For more information about types of X Chromosome Disorders, refer to our section on types of X Chromosome Disorders.
The medical term 'prevalence' of X Chromosome Disorders usually refers to the estimated population of people who are managing X Chromosome Disorders at any given time, whereas the annual diagnosis rate of new cases of X Chromosome Disorders is called the 'incidence'. For more information on prevalence and incidence statistics, see about prevalence and incidence statistics.
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