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Patient demographics
| Characteristic | Mean (SD) |
|---|---|
| Age at diagnosis (months) | 19.8 (17.7) |
| Average length of follow-up (months) | 86.3 (62.5) |
| Sex | Number (%) |
| Male | 151 (51.4) |
| Female | 143 (48.6) |
| Ethnicity | |
| Hispanic | 187 (63.6) |
| Non-Hispanic | 96 (32.7) |
| Unknown | 11 (3.7) |
| Inheritance | |
| Sporadic | 274 (93.2) |
| Inherited | 20 (6.8) |
| Laterality | |
| Unilateral | 177 (60.2) |
| Bilateral | 117(39.8) |
