Table 2.
Birth and parental sociodemographic characteristics of pediatric germ cell tumor cases and controls.
| Characteristic | Cases (n=278) n (%)* |
Controls (n=423) n (%)* |
|---|---|---|
| Gestational age (weeks) | ||
| < 37 | 35 (12.6) | 44 (10.4) |
| 37 - 42 | 236 (84.9) | 367 (86.8) |
| > 42 | 7 (2.5) | 12 (2.8) |
| Mean (sd) | 39.5 (5.6) | 39.6 (4.6) |
| Birth weight (grams) | ||
| ≤2500 | 22 (7.9) | 26 (6.2) |
| 2501-4000 | 214 (77.0) | 351 (83.0) |
| >4000 | 42 (15.1) | 46 (10.9) |
| Mean (sd) | 3354 (681) | 3374 (590) |
| Maternal age category (years) | ||
| ≤24 | 90 (32.4) | 128 (30.3) |
| 25-29 | 99 (35.6) | 145 (34.3) |
| 30-34 | 60 (21.6) | 111 (26.2) |
| ≥35 | 29 (10.4) | 39 (9.2) |
| Mean (sd) | 27.2 (5.5) | 27.3 (5.4) |
| Maternal Education | ||
| <High school | 28 (10.1) | 23 (5.4) |
| High school graduate | 110 (39.6) | 143 (33.8) |
| College, no degree | 53 (19.1) | 97 (22.6) |
| College degree and/or graduate school | 86 (30.9) | 159 (37.7) |
| Household Income (dollars) | ||
| <20,000 | 85 (30.6) | 83 (19.6) |
| 20,000-30,000 | 60 (21.6) | 109 (25.8) |
| 30,001-50,000 | 63 (22.7) | 124 (29.3) |
| >50,000 | 66 (23.7) | 102 (24.1) |
| Maternal Race | ||
| White, not of Hispanic origin | 213 (76.6) | 356 (84.2) |
| African-American or Black, not of Hispanic origin | 25 (9.0) | 25 (5.9) |
| Hispanic | 27 (9.7) | 23 (5.4) |
| Native American Indian or Alaskan Native | 3 (1.2) | 4 (0.9) |
| Asian, Asian-American, or Pacific Islander | 9 (3.3) | 9 (2.1) |
| Other | 0 (0.0) | 5 (1.2) |
*
All characteristics had <2.0% missing data. Numbers may not add to total number of cases and controls due to missing data. Percentages are based on all subjects (including those with missing data).