Table 1.
Baseline demographic and treatment characteristics of participants and non-participants
| Overall | Non-participants | Participants | Odds Ratio for Participation |
||||
|---|---|---|---|---|---|---|---|
| N | % | N | % | OR | 95% CI | ||
| Total | 1202 | 474 | 39.4 | 728 | 60.6 | ||
| Sex | |||||||
| Female | 635 | 246 | 51.9 | 389 | 53.4 | 1.00 | REF |
| Male | 567 | 228 | 48.1 | 339 | 46.6 | 0.93 | (0.73, 1.18) |
| Age at diagnosis, years | |||||||
| 0-4 | 462 | 193 | 40.7 | 269 | 37.0 | 1.00 | REF |
| 5-9 | 268 | 103 | 21.7 | 165 | 22.7 | 1.13 | (0.79, 1.63) |
| 10-14 | 256 | 97 | 20.5 | 159 | 21.8 | 0.98 | (0.62, 1.56) |
| 15+ | 216 | 81 | 17.1 | 135 | 18.5 | 0.91 | (0.52, 1.58) |
| Age at invitation, years | |||||||
| 29-34 | 124 | 49 | 10.3 | 75 | 10.3 | 1.00 | REF |
| 35-39 | 253 | 100 | 21.1 | 153 | 21.0 | 0.88 | (0.55, 1.42) |
| 40-44 | 317 | 130 | 27.4 | 187 | 25.7 | 0.73 | (0.45, 1.20) |
| 45-49 | 276 | 111 | 23.4 | 165 | 22.7 | 0.70 | (0.40, 1.24) |
| 50-54 | 157 | 59 | 12.4 | 98 | 13.5 | 0.74 | (0.38, 1.44) |
| 55+ | 75 | 25 | 5.3 | 50 | 6.9 | 0.89 | (0.40, 1.96) |
| Education | |||||||
| High School or less | 107 | 45 | 9.5 | 62 | 8.5 | 0.93 | (0.6, 1.45) |
| Some College | 278 | 126 | 26.6 | 152 | 20.9 | 1.00 | REF |
| College Graduate | 510 | 205 | 43.2 | 305 | 41.9 | 0.82 | (0.61, 1.11) |
| Post-Graduate | 307 | 98 | 20.7 | 209 | 28.7 | 1.48 | (1.09, 2.01) |
| Race/ethnicity | |||||||
| White, Non-Hispanic | 1091 | 419 | 88.4 | 672 | 92.3 | 1.00 | REF |
| Black, Non-Hispanic | 38 | 16 | 3.4 | 22 | 3.0 | 0.92 | (0.47, 1.80) |
| Hispanic | 44 | 23 | 4.9 | 21 | 2.9 | 0.60 | (0.32, 1.11) |
| Asian, Non-Hispanic | 20 | 11 | 2.3 | 9 | 1.2 | 0.47 | (0.19, 1.19) |
| Other | 4 | 2 | 0.4 | 2 | 0.3 | 0.70 | (0.09, 5.25) |
| Missing | 5 | 3 | 0.6 | 2 | 0.3 | 0.35 | (0.05, 2.32) |
| Diagnosis | |||||||
| Bone cancer | 64 | 21 | 4.4 | 43 | 5.9 | 1.00 | REF |
| Central Nervous System | 92 | 44 | 9.3 | 48 | 6.6 | 0.51 | (0.24, 1.07) |
| Hodgkin lymphoma | 218 | 68 | 14.3 | 150 | 20.6 | 0.98 | (0.52, 1.85) |
| Wilms tumor | 182 | 78 | 16.5 | 104 | 14.3 | 0.52 | (0.25, 1.06) |
| Leukemia | 350 | 147 | 31.0 | 203 | 27.9 | 0.56 | (0.29, 1.10) |
| Neuroblastoma | 77 | 34 | 7.2 | 43 | 5.9 | 0.46 | (0.20, 1.02) |
| Non-Hodgkin lymphoma | 108 | 40 | 8.4 | 68 | 9.3 | 0.72 | (0.35, 1.46) |
| Soft tissue Sarcoma | 111 | 42 | 8.9 | 69 | 9.5 | 0.85 | (0.43, 1.67) |
| Max RT dose in cGy | |||||||
| < 2000 | 301 | 122 | 25.7 | 179 | 24.6 | 1.00 | REF |
| 2000-3999 | 535 | 203 | 42.8 | 332 | 45.6 | 0.99 | (0.72, 1.38) |
| 4000+ | 323 | 128 | 27.0 | 195 | 26.8 | 0.75 | (0.45, 1.25) |
| Unknown | 43 | 21 | 4.4 | 22 | 3.0 | 0.70 | (0.35, 1.40) |
| Chemotherapy | |||||||
| No | 387 | 153 | 32.3 | 234 | 32.1 | 1.00 | REF |
| Yes | 790 | 310 | 65.4 | 480 | 65.9 | 0.90 | (0.67, 1.20) |
| Unknown | 25 | 11 | 2.3 | 14 | 1.9 | 0.73 | (0.31, 1.72) |
| Number of chronic conditions | |||||||
| 0 | 227 | 112 | 23.6 | 115 | 15.8 | 1.00 | REF |
| 1-2 | 532 | 198 | 41.8 | 334 | 45.9 | 1.56 | (1.13, 2.16) |
| 3-4 | 443 | 164 | 34.6 | 279 | 38.3 | 1.56 | (1.10, 2.21) |