Table 2.
Population Characteristics
| Study Participants (n=1639) | Non Participants (n=1015) | P Value | |||
|---|---|---|---|---|---|
|
| |||||
| Total n (%) | Females n (%) | Males n (%) | N (%) | ||
| Gender | |||||
| Female | 832 (50.8) | 459 (45.2) | 0.006 | ||
| Male | 807 (49.2) | 556 (54.8) | |||
| Current age (years) | |||||
| 18–29 | 604 (36.9) | 304 (36.5) | 300 (37.2) | 351 (34.6) | 0.58 |
| 30–39 | 675 (41.2) | 355 (42.7) | 320 (39.7) | 423 (41.7) | |
| 40–49 | 311 (19.0) | 148 (17.8) | 163 (20.2) | 211 (20.8) | |
| 50–59 | 49 (3.0) | 25 (3.0) | 24 (3.0) | 30 (3.0) | |
| Age at diagnosis (years) | |||||
| 0–4 | 665 (40.6) | 333 (40.0) | 332 (41.1) | 411 (40.5) | 0.62 |
| 5–9 | 391 (23.9) | 199 (23.9) | 192 (23.8) | 263 (25.9) | |
| 10–14 | 346 (21.1) | 173 (20.8) | 173 (21.4) | 203 (20.0) | |
| 15–22 | 237 (14.5) | 127 (15.3) | 110 (13.6) | 138 (13.6) | |
| Survival (years) | |||||
| 10–19 | 407 (24.8) | 203 (24.4) | 204 (25.3) | 245 (24.1) | 0.084 |
| 20–29 | 768 (46.9) | 396 (47.6) | 372 (46.1) | 452 (44.5) | |
| 30–39 | 408 (24.9) | 205 (24.6) | 203 (25.2) | 264 (26.0) | |
| 40–48 | 56 (3.4) | 28 (3.4) | 28 (3.5) | 54 (5.3) | |
| Primary Diagnosis | |||||
| Leukemia | 809 (49.4) | 412 (49.5) | 397 (49.2) | 465 (45.8) | 0.32 |
| Lymphoma | 264 (16.1) | 142 (17.1) | 122 (15.1) | 154 (15.2) | |
| Sarcoma | 180 (11.0) | 77 (9.3) | 103 (12.8) | 121 (11.9) | |
| Neuroblastoma | 70 (4.3) | 39 (4.7) | 31 (3.8) | 55 (5.4) | |
| Wilms Tumor | 74 (4.5) | 44 (5.3) | 30 (3.7) | 57 (5.6) | |
| CNSa | 135 (8.2) | 60 (7.2) | 75 (9.3) | 97 (9.6) | |
| Other | 107 (6.5) | 58 (7.0) | 49 (6.1) | 66 (6.5) | |
| Race | |||||
| White | 1435 (87.6) | 722 (86.8) | 713 (88.4) | 873 (86.0) | 0.25b |
| Black | 188 (11.5) | 102 (12.3) | 86 (10.7) | 134 (13.2) | |
| Other | 16 (1.0) | 8 (1.0) | 8 (1.0) | 8 (0.8) | |
| Cranial Radiation | |||||
| Yes | 621 (37.9) | 303 (36.4) | 318 (39.4) | 361 (35.6) | 0.37 |
| No | 1018 (62.1) | 529 (63.6) | 489 (60.6) | 654 (64.4) | |
| Stem Cell Transplant | |||||
| Yes | 45(2.7) | 19(2.3) | 26(3.2) | 31(3.1) | 0.64 |
| No | 1594(97.3) | 813(97.7) | 781(96.8) | 984(96.9) | |
| Educational Attainment | |||||
| < College graduate | 1002 (61.1) | 468 (56.3) | 534 (66.2) | ||
| College graduate | 597 (36.4) | 349 (41.9) | 248 (30.7) | ||
| Not reported | 40 (2.4) | 15 (1.8) | 25 (3.1) | ||
| Smoking Status | |||||
| Current smoker | 332 (20.3) | 155 (18.6) | 177 (21.9) | ||
| Non smoker | 1307 (79.7) | 677 (81.4) | 630 (78.1) | ||
| Body Mass Index (BMI) | |||||
| < 18.5 kg/m2 | 55 (3.4) | 37 (4.4) | 18 (2.2) | ||
| 18.5–24.9 kg/m2 | 497 (30.3) | 281 (33.8) | 216 (26.8) | ||
| 25.0–29.9 kg/m2 | 462 (28.2) | 193 (23.2) | 269 (33.3) | ||
| >= 30 kg/m2 | 625 (38.1) | 321 (38.6) | 304 (37.7) | ||
a
Central nervous system;
b
comparison for race (white vs. black and other); P-values were from Chi-square test.