Daily food costs according to quintiles of scores on the dietary patterns (multiple linear regression model)
| Quintiles of scores on the dietary patterns | ||||||
| 1 (lowest) (n = 3439) | 2 (n = 3440) | 3 (n = 3439) | 4 (n = 3440) | 5 (n = 3439) | p for trend | |
| “Western” dietary pattern | ||||||
| Daily food costs (€/1000 kcal, mean (SD)) | 3.54 (0.91) | 3.22 (0.73) | 3.03 (0.69) | 2.90 (0.60) | 2.77 (0.59) | |
| Crude (regression coefficient β, (95% CI)) | 0 (Ref.) | −0.32 (−0.35 to −0.29) | −0.51 (−0.55 to −0.48) | −0.65 (−0.68 to −0.61) | −0.77 (−0.81 to −0.74) | <0.001 |
| Age- and sex-adjusted (95% CI) | 0 (Ref.) | −0.30 (−0.33 to −0.26) | −0.46 (−0.49 to −0.43) | −0.57 (−0.60 to −0.53) | −0.65 (−0.68 to −0.61) | <0.001 |
| Multivariate*-adjusted (95% CI) | 0 (Ref.) | −0.30 (−0.33 to −0.26) | −0.46 (−0.49 to −0.42) | −0.57 (−0.60 to −0.53) | −0.64 (−0.68 to −0.61) | <0.001 |
| “Mediterranean” dietary pattern | ||||||
| Daily food costs (€/1000 kcal, mean (SD)) | 2.75 (0.70) | 2.93 (0.68) | 3.04 (0.68) | 3.22 (0.72) | 3.52 (0.79) | |
| Crude (regression coefficient β, (95% CI)) | 0 (Ref.) | 0.18 (0.15 to 0.22) | 0.29 (0.25 to 0.32) | 0.47 (0.44 to 0.51) | 0.77 (0.74 to 0.81) | <0.001 |
| Age- and sex-adjusted (95% CI) | 0 (Ref.) | 0.16 (0.13 to 0.19) | 0.25 (0.21 to 0.28) | 0.41 (0.38 to 0.44) | 0.69 (0.66 to 0.73) | <0.001 |
| Multivariate*-adjusted (95% CI) | 0 (Ref.) | 0.17 (0.13 to 0.20) | 0.25 (0.22 to 0.29) | 0.42 (0.39 to 0.45) | 0.71(0.67 to 0.74) | <0.001 |
SD, standard deviation; 95% CI, 95% confidence interval.
*Adjusted for age, sex, years of education, marital status and employment.