Table 3.
Odds ratios (95% CIs) of breast cancer and Dietary Inflammatory Index (DII) score.
| Tertiles of DII | p-Trend ‡ | |||
|---|---|---|---|---|
| T1 | T2 | T3 | ||
| Total (n = 728) | ||||
| Median (range) | −2.74 (≤−1.52) | −0.01 (−1.51–1.23) | 2.91 (>1.23) | |
| No. of controls/cases | 121/56 | 122/141 | 121/167 | |
| Crude OR (95% CI) | Ref. | 2.50 (1.68–3.72) | 2.98 (2.01–4.42) | <0.0001 |
| Adjusted OR (95% CI) a | Ref. | 2.94 (1.87–4.63) | 3.68 (2.34–5.80) | <0.0001 |
| Premenopausal women (n = 444) | ||||
| Median (range) | −2.37 (≤−1.10) | 0.13 (−1.09–1.45) | 3.20 (>1.45) | |
| No. of controls/cases | 74/46 | 75/85 | 74/90 | |
| Crude OR (95% CI) | Ref. | 1.82 (1.13–2.95) | 1.96 (1.21–3.16) | 0.01 |
| Adjusted OR (95% CI) b | Ref. | 1.87 (1.08–3.24) | 2.11 (1.21–3.67) | 0.01 |
| Postmenopausal women (n = 284) | ||||
| Median (range) | −2.94 (≤−1.96) | −0.06 (−1.95–1.02) | 2.62 (>1.02) | |
| No. of controls/cases | 47/19 | 47/49 | 47/75 | |
| Crude OR (95% CI) | Ref. | 2.58 (1.32–5.02) | 3.95 (2.07–7.53) | <0.0001 |
| Adjusted OR (95% CI) c | Ref. | 3.21 (1.35–7.23) | 6.13 (2.66–14.12) | <0.0001 |
DII, Dietary Inflammatory Index; Ref., reference category; ORs, odds ratios; CIs, confidence intervals. a Total was adjusted for height, education level, occupation, age at menarche, parity, total energy intake, and BMI; b Premenopausal women were adjusted for education level, physical activity, parity, and BMI; c Postmenopausal women were adjusted for education level, age at menarche, parity, total energy intake, BMI, dietary supplement use, menopause type, and postmenopausal hormone use. ‡ Linear trends across categories of DII score were tested using the median value for each category.