Table 1.
Select cohort characteristics and cruciferous vegetable intake amount and type, After Breast Cancer Pooling Project (n=11,390)
| WHEL (n=1,435) | LACE (n=1,866) | NHS (n=3,902) | SBCSS (n=4,187) | |
|---|---|---|---|---|
|
|
|
|
|
|
| Age at diagnosis, mean (SD) | 51.1 (8.9) | 58.6 (10.8) | 64.5 (7.6) | 53.5 (10.0) |
| Years of diagnosis, range | 1991–2000 | 1996–2000 | 1990–2004 | 2002–2006 |
| Median follow-up, years | 11.5 | 11.8 | 12.0 | 5.3 |
| Total deaths, n | 212 | 364 | 641 | 508 |
| Recurrences, n | 270 | 342 | 402 | 407 |
| Months between diagnosis and dietary assessment, mean, (range) | 23.4 (1.9–48.3) | 22.5 (11.0–38.8) | 23.8 (0.9–47.9) | 18.3 (11.7–34.7) |
| Cruciferous (g/day) median (10th–90th ) | 23.8 (6.9–77.9) | 22.4 (4.4–74.0) | 25.4 (5.6–70.7) | 93.0 (39.4–188) |
| Types of cruciferous vegetables assessed from food frequency questionnaire | broccoli greens (mustard, turnip, collard) cauliflower/Brussels sprouts watercress cabbage/coleslaw radishes turnips rutabaga | broccoli cooked greens (spinach, mustard greens, turnip greens, collards) cauliflower/cabbage/sauer-kraut/Brussels sprouts coleslaw | broccoli Kale/mustard greens/chard cauliflower cabbage/coleslaw Brussels sprouts | greens and Chinese greens, cabbage (Chinese cabbage, bok choy, green cabbage), cauliflower, and turnips |
| Total number of separate items for cruciferous vegetables | 8 | 4 | 5 | 5 |