Table 10.
Hazard ratios and 95% confidence intervals for breast cancer in two models* according to fifths of intake of fruit juice during early adulthood among women in the Nurses’ Health Study II
| Fifth of intake | Ptrend† | Per serving/day | |||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | |||
| All cases | |||||||
| Median intake (serving/day) | 0 | 0.2 | 0.6 | 1.2 | 2.0 | — | — |
| No of cases/person years | 659/399 290 | 631/359 799 | 602/363 546 | 680/381 851 | 661/379 702 | — | — |
| Model 1 | 1 | 1.11 (0.99 to 1.24) | 1.04 (0.93 to 1.17) | 1.13 (1.01 to 1.25) | 1.13 (1.01 to 1.26) | 0.05 | 1.05 (1.00 to 1.10) |
| Model 2 | 1 | 1.10 (0.98 to 1.23) | 1.03 (0.92 to 1.15) | 1.10 (0.98 to 1.23) | 1.11 (0.99 to 1.25) | 0.13 | 1.04 (0.99 to 1.10) |
| Premenopausal cases | |||||||
| Median intake (serving/day) | 0 | 0.2 | 0.6 | 1.2 | 2.1 | — | — |
| No of cases/person years | 325/237 972 | 333/237 215 | 355/233 474 | 352/233 467 | 353/237 779 | — | — |
| Model 1 | 1 | 1.07 (0.91 to 1.24) | 1.13 (0.97 to 1.32) | 1.13 (0.97 to 1.32) | 1.12 (0.97 to 1.31) | 0.15 | 1.05 (0.98 to 1.12) |
| Model 2 | 1 | 1.07 (0.91 to 1.25) | 1.12 (0.96 to 1.31) | 1.12 (0.96 to 1.31) | 1.12 (0.95 to 1.32) | 0.21 | 1.04 (0.98 to 1.12) |
| Postmenopausal cases | |||||||
| Median intake (serving/day) | 0 | 0.2 | 0.5 | 1.2 | 2.0 | — | — |
| No of cases/person (years) | 262/122 468 | 207/88 494 | 225/106 537 | 247/113 306 | 227/99 537 | — | — |
| Model 1 | 1 | 1.12 (0.93 to 1.34) | 1.00 (0.83 to 1.19) | 1.03 (0.87 to 1.23) | 1.10 (0.92 to 1.32) | 0.49 | 1.03 (0.95 to 1.12) |
| Model 2 | 1 | 1.11 (0.93 to 1.34) | 0.98 (0.82 to 1.18) | 1.02 (0.85 to 1.22) | 1.08 (0.89 to 1.30) | 0.68 | 1.02 (0.93 to 1.11) |
*See table 7.
†Ptrend calculated with median intake of each variable in each fifth as continuous variable.