Selected characteristics of women participating in the multiethnic Bay Area Thyroid Cancer Study
| Characteristic . | Cases . | Controls . |
|---|---|---|
| Age (mean ± SD) | 42.3 ± 12.7 | 43.2 ± 13.4 |
| Race/ethnicity (%) | ||
| Asian | 36% | 35% |
| White | 49% | 52% |
| Other | 15% | 13% |
| Medical radiation to the head/neck (%)a | 3% | 1% |
| History of goiter or thyroid nodules (%)b | 21% | 6% |
| Family history of proliferative thyroid disease (%)c | 14% | 5% |
| Recent pregnancy (%)d | 35% | 28% |
| Menopausal status (%) | ||
| Premenopausal | 72% | 68% |
| Postmenopausal | 20% | 23% |
| Cannot determinee | 8% | 10% |
| Daily caloric intake (kcal/day) | 2,188 ± 842 | 2,101 ± 821 |
| % of calories from fat | 32% | 31% |
| Consumption of cruciferous vegetables (g/day) | 55 ± 63 | 58 ± 63 |
| Total carotenoid intake (mcg/day)f | 13,127 ± 9,572 | 14,545 ± 11,414 |
| Vitamin C intake (mg/day)f | 347 ± 528 | 388 ± 556 |
| Vitamin E intake (α-TE/day)f | 52 ± 119 | 77 ± 157 |
| Fiber intake (g/day) | 22 ± 10 | 23 ± 11 |
| Characteristic . | Cases . | Controls . |
|---|---|---|
| Age (mean ± SD) | 42.3 ± 12.7 | 43.2 ± 13.4 |
| Race/ethnicity (%) | ||
| Asian | 36% | 35% |
| White | 49% | 52% |
| Other | 15% | 13% |
| Medical radiation to the head/neck (%)a | 3% | 1% |
| History of goiter or thyroid nodules (%)b | 21% | 6% |
| Family history of proliferative thyroid disease (%)c | 14% | 5% |
| Recent pregnancy (%)d | 35% | 28% |
| Menopausal status (%) | ||
| Premenopausal | 72% | 68% |
| Postmenopausal | 20% | 23% |
| Cannot determinee | 8% | 10% |
| Daily caloric intake (kcal/day) | 2,188 ± 842 | 2,101 ± 821 |
| % of calories from fat | 32% | 31% |
| Consumption of cruciferous vegetables (g/day) | 55 ± 63 | 58 ± 63 |
| Total carotenoid intake (mcg/day)f | 13,127 ± 9,572 | 14,545 ± 11,414 |
| Vitamin C intake (mg/day)f | 347 ± 528 | 388 ± 556 |
| Vitamin E intake (α-TE/day)f | 52 ± 119 | 77 ± 157 |
| Fiber intake (g/day) | 22 ± 10 | 23 ± 11 |
More than 5 years prior to diagnosis/selection.
Diagnosed more than 2 years prior to diagnosis/selection.
Defined as goiter, thyroid nodules, or thyroid cancer.
Defined as within the 2 years before diagnosis/selection; analysis limited to women under age 45.
Women who began taking hormone replacement therapy before the cessation of menses and who had not yet attained age 55.
Including intake from food sources and supplements.