Body mass index stratified analysis of the association between Dietary Inflammatory Index (DII) and depression
| Model 1 | Model 2 | Model 3 | |
| BMI <24.00 (normal weight) | |||
| Quartile 1 (n=180） | 1.00 (Ref) | 1.00 (Ref) | 1.00 (Ref) |
| Quartile 2 (n=232） | 1.08 (0.92–1.18) | 1.06 (0.82–1.16) | 1.05 (0.86–1.18) |
| Quartile 3 (n=221） | 1.12 (0.86–1.25) | 1.15 (0.92–1.28) | 1.18 (0.92–1.26) |
| Quartile 4 (n=189） | 1.16 (0.95–1.28) | 1.21 (0.96–1.46) | 1.32 (0.98–1.52) |
| P-trend | 0.28 | 0.16 | 0.08 |
| 24.00≤BMI<28.00 (overweight) | |||
| Quartile 1 (n=215） | 1.00 (Ref) | 1.00 (Ref) | 1.00 (Ref) |
| Quartile 2 (n=194） | 1.09 (0.89–1.25) | 1.08 (1.01–1.26) | 1.10 (1.03–1.29) |
| Quartile 3 (n=184） | 1.13 (1.02–1.32) | 1.15 (1.05–1.29) | 1.21 (1.09–1.37) |
| Quartile 4 (n=187） | 1.25 (1.08–1.46) | 1.31 (1.11–1.52) | 1.35 (1.13–1.56) |
| P-trend | 0.03 | 0.01 | 0.006 |
| BMI≥28.00 (obese) | |||
| Quartile 1(n=109） | 1.00 (Ref) | 1.00 (Ref) | 1.00 (Ref) |
| Quartile 2 (n=80） | 1.08 (1.01–1.19) | 1.15 (1.05–1.29) | 1.18 (1.09–1.35) |
| Quartile 3 (n=99） | 1.21 (1.10–1.39) | 1.28 (1.13–1.46) | 1.32 (1.19–1.58) |
| Quartile 4 (n=132） | 1.39 (1.19–1.52) | 1.42 (1.21–1.62) | 1.56 (1.23–1.78) |
| P-trend | 0.008 | 0.005 | 0.003 |
Model 1 is not adjusted.
Model 2 adjusts age, sex, employment, education, daily energy intake, tobacco smoking, alcohol drinking and physical activities.
Model 3 adjusts age, sex, employment, education, tobacco smoking, alcohol drinking, physical activities, diabetes and hypertension.
BMI, body mass index.