Table 1.
Distribution of characteristics among study participants, The STEED Study, 2002-2005
| Mothers of sons with TGCT (Cases) (n = 527) mean (sd) |
Mother of sons without TGCT (Controls) (n = 562) mean (sd) |
||
|---|---|---|---|
| Mother’s age at son’s birth (yrs) | 24.0 (5.1) | 24.3 (4.9) | |
| Son’s age at TGCT diagnosis (yrs) | 27.1 (5.7) | 27.1 (5.7) | |
| Maternal weight gain during pregnancy (lbs.) | 29.7 (14.1) | 28.6 (13.3) | |
| n (%) | n (%) | p-value | |
| Mother’s age at son’s birth (yrs) | 0.10 | ||
| <20 | 118 (23.2) | 89 (16.4) | |
| 20-29 | 314 (61.7) | 375 (69.2) | |
| ≥30 | 77 (15.1) | 78 (14.4) | |
| Son’s age at TGCT diagnosis (yrs) | 0.91 | ||
| <20 | 26 (4.9) | 22 (3.9) | |
| 20-24 | 176 (33.4) | 197 (35.1) | |
| 25-29 | 166 (31.5) | 170 (30.3) | |
| 30-34 | 85 (16.1) | 99 (17.6) | |
| 35-39 | 57 (10.8) | 56 (10.0) | |
| ≥40 | 17 (3.2) | 18 (3.2) | |
| Race | 0.64 | ||
| White | 467 (88.6) | 504 (89.7) | |
| Black | 12 (2.3) | 15 (2.7) | |
| Other | 48 (9.1) | 43 (7.7) | |
| Breastfed son | 0.02 | ||
| Yes | 170 (32.3) | 148 (26.3) | |
| No | 357 (67.7) | 414 (73.7) | |
| Number of Products Used | 0.92 | ||
| 0 | 19 (3.6) | 15 (2.7) | |
| 1 | 40 (7.6) | 46 (8.2) | |
| 2 | 84 (15.9) | 97 (17.3) | |
| 3 | 108 (20.5) | 128 (22.8) | |
| 4 | 118 (22.4) | 114 (20.3) | |
| 5 | 88 (16.7) | 84 (14.9) | |
| 6 | 41 (7.8) | 49 (8.7) | |
| 7 | 23 (4.4) | 23 (4.1) | |
| 8 | 5 (0.9 | 4 (0.7) | |
| 9 | 1 (0.2) | 2 (0.4) | |
| Maternal weight gain during pregnancy (lbs.) | 0.21 | ||
| <20 | 159 (32.9) | 168 (32.0) | |
| 20-24 | 80 (16.6) | 104 (19.8) | |
| 25-34 | 113 (23.4) | 136 (25.9) | |
| ≥35 | 131 (27.1) | 117 (22.3) |
Abbreviations: SD = Standard Deviation