| Q1 (n = 5115) | Q2 (n = 5015) | Q3 (n = 5181) | Q4 (n = 5125) | Q5 (n = 5107) | Total (n = 25,543) | Correlation coefficientb |
---|---|---|---|---|---|---|---|
Median total SDI-US score (min, max) | 9.7 (4.3, 10.8) | 11.7 (11.0, 12.5) | 13.0 (12.5, 13.7) | 14.4 (13.8, 15.2) | 16.1 (15.3, 20.0) | 13.1 (4.3, 20.0) | NA |
 | Weighted mean (standard error)a | ||||||
Total SDI-US score | 9.5 ± 0.02 | 11.7 ± 0.01 | 13.1 ± 0.01 | 14.5 ± 0.01 | 16.5 ± 0.02 | 13.1 ± 0.04 | 1.00 |
Sub-Index Scores & Indicator Values | |||||||
Nutritional | 2.1 ± 0.03 | 2.6 ± 0.03 | 3.0 ± 0.03 | 3.4 ± 0.03 | 4.0 ± 0.02 | 3.1 ± 0.02 | 0.54** |
 Nutrient Rich Foods 9.3 index score | 5.8 ± 0.3 | 11.2 ± 0.4 | 16.7 ± 0.5 | 22.0 ± 0.5 | 32.9 ± 0.6 | 18.1 ± 0.3 | 0.42** |
 Mean nutrient adequacy ratio | 63.4 ± 0.3 | 67.7 ± 0.3 | 70.9 ± 0.3 | 73.9 ± 0.3 | 77.9 ± 0.2 | 71.0 ± 0.2 | 0.43** |
Environmental | 2.2 ± 0.03 | 2.6 ± 0.03 | 2.9 ± 0.03 | 3.1 ± 0.04 | 3.6 ± 0.02 | 2.9 ± 0.01 | 0.39** |
 Fresh water use (L) | 518 ± 8 | 444 ± 10 | 387 ± 8 | 337 ± 9 | 242 ± 5 | 382 ± 4 | -0.27** |
 Stress-weighted water use (L) | 17,275 ± 288 | 14,735 ± 326 | 13,244 ± 273 | 11,637 ± 309 | 8676 ± 175 | 13,004 ± 144 | -0.26** |
 Acidifying emissions (g SO2eq) | 37.5 ± 0.6 | 28.8 ± 0.7 | 22.1 ± 0.4 | 18.6 ± 0.5 | 12.0 ± 0.3 | 23.5 ± 0.3 | -0.38** |
 Eutrophying emissions (g PO43−eq) | 29.9 ± 0.5 | 23.2 ± 0.6 | 17.0 ± 0.4 | 14.3 ± 0.5 | 8.7 ± 0.2 | 18.3 ± 0.2 | -0.34** |
 Greenhouse gas emissions (kg CO2eq) | 7.0 ± 0.2 | 5.4 ± 0.2 | 3.9 ± 0.1 | 3.2 ± 0.1 | 2.0 ± 0.1 | 4.2 ± 0.1 | -0.32** |
 Land use (m2) | 17.4 ± 0.5 | 13.0 ± 0.5 | 8.7 ± 0.3 | 7.0 ± 0.3 | 3.7 ± 0.1 | 9.8 ± 0.2 | -0.28** |
Economic | 2.0 ± 0.03 | 2.7 ± 0.03 | 3.2 ± 0.03 | 3.7 ± 0.03 | 4.3 ± 0.02 | 3.2 ± 0.02 | 0.61** |
 Share of budget to food (%) | 47.7 ± 1.5 | 30.4 ± 1.0 | 22.7 ± 0.9 | 17.4 ± 0.9 | 10.0 ± 0.2 | 25.1 ± 0.6 | -0.27** |
Sociocultural | 3.3 ± 0.02 | 3.8 ± 0.02 | 4.0 ± 0.02 | 4.2 ± 0.02 | 4.5 ± 0.01 | 4.0 ± 0.01 | 0.47** |
 Frequency of meals from a fast-food or pizza place (times during the last 7 days) | 3.1 ± 0.1 | 2.0 ± 0.1 | 1.6 ± 0.1 | 1.1 ± 0.1 | 0.8 ± 0.04 | 1.7 ± 0.03 | -0.32** |
 Frequency of ready-to-eat products (times during the last 30 days) | 3.6 ± 0.1 | 2.5 ± 0.2 | 1.9 ± 0.1 | 1.3 ± 0.1 | 0.8 ± 0.1 | 2.0 ± 0.1 | -0.18** |
 Frequency of frozen meals and pizza (times during the last 30 days) | 5.1 ± 0.2 | 2.9 ± 0.1 | 2.6 ± 0.2 | 1.9 ± 0.1 | 1.3 ± 0.1 | 2.7 ± 0.1 | -0.19** |
Index scores after removing each sub-index | |||||||
SDI-US without nutritional sub-index | 7.5 ± 0.03 | 9.1 ± 0.03 | 10.1 ± 0.03 | 11.0 ± 0.03 | 12.4 ± 0.02 | 10.1 ± 0.02 | 0.85** |
SDI-US without environmental sub-index | 7.3 ± 0.03 | 9.1 ± 0.03 | 10.2 ± 0.03 | 11.3 ± 0.04 | 12.8 ± 0.03 | 10.2 ± 0.04 | 0.85** |
SDI-US without economic sub-index | 7.6 ± 0.02 | 9.0 ± 0.03 | 9.9 ± 0.03 | 10.8 ± 0.03 | 12.1 ± 0.03 | 9.9 ± 0.03 | 0.83** |
SDI-US without sociocultural sub-index | 6.3 ± 0.03 | 7.9 ± 0.02 | 9.1 ± 0.02 | 10.2 ± 0.02 | 12.0 ± 0.02 | 9.2 ± 0.03 | 0.93** |