Table 1.
Characteristics of the survivors and siblings
| Survivors (%) | Sibling (%) | P-value | |
|---|---|---|---|
| Sample size | 307 | 97 | |
| Sex | |||
| Female | 184 (60) | 54 (56) | 0.48 |
| Male | 123 (40) | 43 (44) | |
| Race | |||
| White | 272 (89) | 85 (88) | 0.83 |
| Black | 16 (5) | 4 (4) | |
| Hispanic | 4 (1) | 2 (2) | |
| Other race | 15 (5) | 6 (6) | |
| Current age | |||
| <18 | 129 (42) | 58 (60) | 0.002 |
| 18–20 | 178 (58) | 39 (40) | |
| Diagnosis | |||
| Leukemia | 95 (31) | - | - |
| CNS tumor | 40 (13) | - | - |
| Hodgkins disease | 0 (0) | - | - |
| NHL | 4 (1) | - | - |
| Wilms tumor | 56 (18) | - | - |
| Neuroblastoma | 90 (29) | - | - |
| Soft tissue sarcoma | 19 (6) | - | - |
| Bone tumor | 3 (1) | - | - |
| Age at diagnosis | |||
| 0–1 | 198 (65) | - | - |
| 2–3 | 109 (35) | - | - |
| Treatment | |||
| Chemotherapy | 144 (49) | - | - |
| Any Radiation | 11 (4) | - | - |
| Chemo + Any Rad | 99 (33) | - | - |
| Surgery only | 41 (14) | - | - |
Note: Fisher’s Exact tests were used evaluate p-values for the comparison between cases and siblings