Table 3.
Adjusted RR (95% CI) for depressive symptoms with egg consumption, stratified by frequency of other food intakes
| Subgroups | Total | Cases | Egg consumption | ||
|---|---|---|---|---|---|
| None or not weekly | < 3 eggs/week | ≥3 eggs/week | |||
| Vegetable intake | |||||
| < 7 days/week | 1617 | 301 | 1.00 (Ref) | 0.59 (0.44–0.78) | 0.73 (0.52–1.00) |
| ≥ 7 days/week | 6667 | 1081 | 1.00 (Ref) | 0.77 (0.67–0.88) | 0.62 (0.53–0.71) |
| P for interaction | 0.10 | ||||
| Fruit intake | |||||
| < 3 days/week | 5027 | 928 | 1.00 (Ref) | 0.71 (0.61–0.82) | 0.66 (0.56–0.78) |
| ≥ 3 days/week | 3257 | 454 | 1.00 (Ref) | 0.68 (0.54–0.86) | 0.55 (0.45–0.69) |
| P for interaction | 0.16 | ||||
| Red meat intake | |||||
| < 3 days/week | 4141 | 766 | 1.00 (Ref) | 0.74 (0.63–0.86) | 0.55 (0.45–0.66) |
| ≥ 3 days/week | 4143 | 616 | 1.00 (Ref) | 0.63 (0.51–0.77) | 0.66 (0.55–0.79) |
| P for interaction | 0.16 | ||||
| Fish intake | |||||
| < 3 days/week | 5070 | 665 | 1.00 (Ref) | 0.92 (0.77–1.10) | 0.82 (0.68–0.99) |
| ≥ 3 days/week | 3214 | 717 | 1.00 (Ref) | 0.60 (0.51–0.72) | 0.54 (0.45–0.66) |
| P for interaction | < 0.01 | ||||
Abbreviations: RR Relative risk, CI Confidence interval, Ref Reference
Adjusted for all same covariates included in model 4 (see Table 2), except the variable for stratification