|
|
|
Frequency
of Chromosomal disorders Among Live Born Infants
| Autosomal Abnormalities |
|
|
|
| Trisomy 21 |
|
|
1 in 800 |
| Trisomy 18 |
|
|
1 in 5,000 |
| Trisomy 13 |
|
|
1 in 15,000 |
| Sex Chromosomal
Abnormalities |
|
|
|
| Klinefelter Syndrome
(47,XXY) |
|
|
1 in 700 males |
| XYY Syndrome (47,XYY) |
|
|
1 in 800 males |
| Turner Syndrome (45X or
45X/46XX or 45X/46XY |
|
|
1 in 1500 females |
| Triple X syndrome
(47,XXX) |
|
|
1 in 1000 females |
|
|
|
|
 
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|
|
