TABLE 3.
Hazard ratios (HRs) by vegetable-fruit-soy dietary pattern quartile (Q) and duration of follow-up among postmenopausal women at baseline
| 0 to <5 y |
≥5 y |
|||||
| No. of cases | HR (95% CI)1 | P for trend2 | No. of cases | HR (95% CI)1 | P for trend2 | |
| Q1 | 58 | 1.0 (reference ) | — | 60 | 1.0 (reference ) | — |
| Q2 | 54 | 0.95 (0.65, 1.38) | — | 79 | 1.20 (0.85, 1.70) | — |
| Q3 | 47 | 0.83 (0.55, 1.24) | — | 59 | 0.90 (0.61, 1.31) | — |
| Q4 | 46 | 0.86 (0.56, 1.32) | 0.39 | 39 | 0.57 (0.36, 0.88) | <0.01 |
1
All HRs were adjusted for age at interview (y), dialect group (Cantonese or Hokkien), interview year (1993–1995 or 1996–1998), education (no formal education, primary school, or secondary school or higher), parity (0, 1–2, 3–4, or ≥5 births), BMI [in kg/m2; < or ≥23.2 (median)], first-degree relative with diagnosis of breast cancer (no or yes), and total daily energy intake (quartiles).
2
The linear trend tests for dietary patterns–breast cancer associations were based on median values of the ordinal variable categories (0, 1, 2, and 3).