Table 1.
Demographic characteristics
| Overall | Males | Females | ||||
|---|---|---|---|---|---|---|
| Controls n (%) |
Cases n (%) |
Controls n (%) |
Cases n (%) |
Controls n (%) |
Cases n (%) |
|
| Mother’s race | ||||||
| White | 356 (84.4) | 213 (76.9) | 152 (84.0) | 70 (84.3) | 203 (84.6) | 143 (73.7) |
| Non-white | 66 (15.6) | 64 (23.1) | 29 (16.0) | 13 (15.7) | 37 (15.4) | 51 (26.3) |
| Mother’s education | ||||||
| ≤ High school | 166 (39.3) | 138 (49.8) | 66 (36.6) | 39 (47.0) | 100 (41.7) | 99 (51.0) |
| Some post HS | 97 (23.0) | 53 (19.1) | 40 (22.1) | 16 (19.3) | 57 (23.8) | 37 (19.1) |
| College graduate | 159 (37.7) | 86 (31.0) | 75 (41.4) | 28 (33.7) | 83 (34.6) | 58 (29.9) |
| Household income | ||||||
| ≤ $30,000 | 192 (45.9) | 145 (52.9) | 81 (44.8) | 40 (50.0) | 111 (47.0) | 105 (54.1) |
| $30,001–$50,000 | 124 (29.7) | 63 (23.0) | 53 (29.3) | 21 (26.3) | 70 (29.7) | 42 (21.6) |
| > $50,000 | 102 (24.4) | 66 (24.1) | 47 (26.0) | 19 (23.8) | 55 (23.3) | 47 (24.2) |
| Index child’s gestational age | ||||||
| < 37 weeks | 44 (10.4) | 35 (12.6) | 16 (8.8) | 10 (12.0) | 27 (11.2) | 25 (12.8) |
| 37–41 weeks | 343 (81.1) | 220 (79.1) | 150 (82.9) | 67 (80.7) | 193 (80.1) | 153 (78.5) |
| ≥ 42 weeks | 36 (8.5) | 23 (8.3) | 15 (8.3) | 6 (7.2) | 21 (8.7) | 17 (8.7) |
| Index child’s birth weight Mean (SD) | 3373.72 (590.31) | 3354.27 (680.58) | 3462.77 (607.81) | 3499.00 (644.45) | 3309.19 (569.33) | 3292.67 (687.78) |
| Index child’s gender | ||||||
| Male | 181 (42.9) | 83 (29.9) | ||||
| Female | 241 (57.1) | 195 (70.1) | ||||
| Index child’s age at diagnosis | ||||||
| <1 years | 57 (20.5) | 22 (26.5) | 35 (17.9) | |||
| 1–4 years | 91 (32.7) | 42 (50.6) | 49 (25.1) | |||
| 5–9 years | 41 (14.7) | 4 (4.8) | 37 (19.0) | |||
| 10–15 years | 89 (32.0) | 15 (18.1) | 74 (37.9) | |||
| Type of tumor | ||||||
| Gonadal | 144 (53.1) | 47 (58.0) | 97 (51.1) | |||
| Non-gonadal | 120 (44.3) | 31 (38.3) | 89 (46.8) | |||
| Metastatic | 7 (2.6) | 3 (3.7) | 4 (2.1) | |||