Table 4.
Hazard ratios (HR) [Multivariable model was adjusted for age (years), education (tertiles by birth year), smoking (never, former, current smokers), height (cm, continuous), body mass index (kg/m2, continuous), leisure time exercise (passive, somewhat active, active), parity (never, ever), hormone replacement therapy (never, ever), energy intake (kJ/day, continuous) and cohort. The specific stratification factor was excluded from the model] and confidence intervals (95% CI) of postmenopausal breast cancer for dietary indices (Quintile 5 vs. Quintile 1) by the categories of body mass index and leisure time exercise.
| Number of cases | mNordic Dietary Index | mMediterranean Dietary Index | mAlternative healthy Eating (AHEI) index | ||||
|---|---|---|---|---|---|---|---|
| Q5 vs. Q1 HR (95% CI) | Pbetween-categories heterogeneity | Q5 vs. Q1 HR (95% CI) | Pbetween-categories heterogeneity | Q5 vs. Q1 HR (95% CI) | Pbetween-categories heterogeneity | ||
| BMI, kg/m2 | 0.48 | 0.22 | 0.74 | ||||
| < 25 | 87 | 0.70 (0.34–1.43) | – | 0.72 (0.37–1.38) | 0.87 (0.43–1.74) | ||
| 25–< 30 | 104 | 0.68 (0.33–1.40) | – | 0.95 (0.50–1.82) | 0.93 (0.48–1.81) | ||
| ≥ 30 | 83 | 0.75 (0.36–1.58) | – | 1.04 (0.49–2.22) | 0.89 (0.44–1.77) | ||
| Leisure time exercise | 0.85 | 0.14 | 0.29 | ||||
| Active | 42 | 0.73 (0.28–1.93) | – | 0.65 (0.23–1.78) | – | 2.57 (0.81–8.17) | |
| Somewhat active | 153 | 0.66 (0.37–1.18) | – | 0.73 (0.44–1.23) | – | 0.68 (0.39–1.16) | |
| Passive | 79 | 0.82 (0.37–1.80) | – | 1.50 (0.72–3.14) | 0.95 (0.45–2.01) | ||
| Follow-up period, years | 0.67 | 0.48 | 0.49 | ||||
| < 5 | 126 | 0.78 (0.43–1.43) | – | 1.06 (0.60–1.85) | – | 1.05 (0.59–1.87) | |
| ≥ 5 | 148 | 0.66 (0.37–1.17) | – | 0.74 (0.43–1.29) | 0.78 (0.46–1.34) | ||