TABLE 1
FROM:
A prospective study of grapefruit and grapefruit juice intake and breast cancer risk
E H Kim, S E Hankinson, A H Eliassen and W C Willett
BACK TO ARTICLETable 1. Multivariate relative risks of breast cancer incidence between 1984 and 2002 by cumulatively averaged grapefruit and grapefruit juice intake
| All women 77 050 subjects (total cases=4315) | |||||
| Grapefruit (per day) | 0 | >0–1/8 |  1/8–1/4
| 1/4
| P Trend |
| Cases | 969 | 2576 | 539 | 231 | |
| Multivariate RR (95% CI) | 1.00 | 1.02 (0.94, 1.10) | 0.96 (0.86, 1.07) | 1.00 (0.86, 1.15) | 0.5 |
| Grapefruit juice (small glass per day) | 0 | >0–1/4 | 1/4–1/2
| 1/2
| P Trend |
| Cases | 2335 | 1571 | 265 | 144 | |
| Multivariate RR (95% CI) | 1.00 | 0.96 (0.89, 1.02) | 1.01 (0.89, 1.15) | 0.95 (0.80, 1.13) | 0.52 |
| Postmenopausal women only 73 411 subjects (total cases=3570) | |||||
| Grapefruit (per day) | 0 | >0–1/8 | 1/8–1/4
| 1/4
| P Trend |
| Cases | 732 | 2169 | 469 | 200 | |
| Multivariate RR (95% CI) | 1.00 | 1.03 (0.95, 1.12) | 0.97 (0.86, 1.09) | 0.97 (0.83, 1.14) | 0.34 |
| Grapefruit juice (small glass per day) | 0 | >0–1/4 | 1/4–1/2
| 1/2
| P Trend |
| Cases | 1853 | 1360 | 228 | 129 | |
| Multivariate RR (95% CI) | 1.00 | 0.99 (0.92, 1.06) | 1.04 (0.90, 1.19) | 1.02 (0.85, 1.22) | 0.95 |
Values are adjusted for energy, age, time period, height, parity, age at first birth, weight change since age 18 years, body mass index at age 18 years, age at menopause, use of hormone replacement therapy, family history of breast cancer, benign, breast disease, age at menarche and physical activity.
