Table 1.
Characteristics of study population
| Characteristic | n (%) |
|---|---|
| Gender | |
| Female | 71 (62) |
| Male | 44 (38) |
| NF1 type | |
| Familial | 55 (48) (30 F, 25 M) |
| Sporadic | 56 (49) (38 F, 18 M) |
| Unknown | 4 (3) |
| Tumor locationa | |
| Nerve | 17 (15) |
| Chiasm | 27 (23) |
| Hypothalamus | 16 (14) |
| Tracts/radiations | 55 (48) |
| Chemotherapy regimen | |
| Vcr/carbo (weekly) | 91 (79) |
| Vcr/carbo (monthly) | 14 (12) |
| Carbo (monthly) | 8 (7) |
| Carbo (every other week) | 1 (1) |
| Vinblastine | 1 (1) |
Abbreviations: NF1, neurofibromatosis type 1; vcr, vincristine; carbo, carboplatin; F, female; M, male.
aLocation is the most posteriorly involved part of the visual pathway.