Table taken from Sam Killermann’s A Guide to Gender, p. 75
| Difference in Sex Development | Rate |
|---|---|
| Not XX and Not XY | 1 in 1,666 births |
| Klinefelter (XXY) | 1 in 1,000 births |
| Androgen Insensitivity Syndrome | 1 in 13,000 births |
| Partial Androgen Insensitivity Syndrome | 1 in 130,000 births |
| Classical Congenital Adrenal Hyperplasia | 1 in 13,000 births |
| Late Onset Adrenal Hyperplasia | 1 in 66 individuals |
| Vaginal Agenesis | 1 in 6,000 births |
| Ovotestes | 1 in 6,000 births |
| Idiopathic (no discernible medical cause) | 1 in 110,000 births |
| Iatrogenic (caused by medical treatment) | No estimate |
| 5 Alpha Reductase Deficiency | No estimate |
| Mixed Gonadal Dysgenesis | No estimate |
| Complete Gonadal Dysgenesis | 1 in 150,000 births |
| Hypospadias (in perineum or penile shaft) | 1 in 2,000 births |
| Hypospadias (between corona and tip of penis) | 1 in 770 births |
| Total number of people whose bodies differ from standard male or female | 1 in 100 births |
| Total number of people receiving surgery to “normalize” genital appearance | 1 or 2 in 1,000 births |