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Frequency of physical and clinical characteristics in boys with Klinefelter syndrome
| Characteristic | Frequency in boys with KS |
|---|---|
| Penile length SDS <0 | 92% |
| Testicular volume SDS <0 | 76% |
| Height SDS >0 | 73% |
| BMISDS >0 | 62% |
| Gynecomastia in boys > 10 years | 44% |
| Clinodactyly | 74% |
| Hypertelorism | 69% |
| Elbow dysplasia (mild) | 36% |
| Abnormal palate | 37% |
| Hypotonia | 76% |
| Speech therapy | 69% |
| Reading therapy | 55% |
