Table 3.
Odds ratios (ORs) of cervical cancer risk and corresponding 95% confidence intervals (CI) according to quintiles of Dietary Inflammatory Index (DII) among 764 cases and 729 controls.
| Variables | Quintiles of Dietary Inflammatory Index | P for Trend c | DII Continuous | ||||
|---|---|---|---|---|---|---|---|
| Q1 (Anti-Inflammatory) | Q2 | Q3 | Q4 | Q5 (Proinflammatory) | |||
| Minimally adjusted model a | |||||||
| CIN1 | Ref | 0.96 (0.62–1.49) | 1.16 (0.73–1.83) | 0.89 (0.54–1.49) | 0.80 (0.45–1.42) | 0.46 | 0.99 (0.90–1.08) |
| CIN2/3 | Ref | 1.34 (0.76–2.38) | 1.94 (1.08–3.50) | 2.70 (1.46–5.01) | 3.70 (1.90–7.22) | <0.0001 | 1.27 (1.15–1.41) |
| CX CAN | Ref | 0.96 (0.55–1.68) | 1.01 (0.56–1.84) | 1.25 (0.68–2.31) | 2.63 (1.40–4.95) | 0.0003 | 1.18 (1.07–1.30) |
| Fully adjusted model b | |||||||
| CIN1 | Ref | 0.97 (0.62–1.51) | 1.23 (0.77–1.97) | 0.96 (0.57–1.62) | 0.86 (0.48–1.55) | 0.67 | 1.01 (0.91–1.10) |
| CIN2/3 | Ref | 1.41 (0.78–2.54) | 1.89 (1.03–3.48) | 2.45 (1.28–4.66) | 3.14 (1.57–6.29) | 0.0005 | 1.23 (1.10–1.37) |
| CX CAN | Ref | 0.93 (0.52–1.67) | 0.92 (0.49–1.73) | 0.99 (0.52–1.89) | 1.98 (1.01–3.88) | 0.02 | 1.12 (1.00–1.24) |
a Minimally adjusted model: adjusted for age (continuous) and energy (continuous). b Fully adjusted model: adjusted for age (continuous), energy (continuous), marriage (single, married, divorced), education level (middle school, high school, college), alcohol consumption (yes, no), physical activity (yes, no), pregnancy (yes, no), oral contraceptive use (yes, no), menopausal status (pre- or peri-menopause, post-menopause) and BMI (continuous). c Categorical DII scores by quintiles were used to determine p for trends.