Table 3. Description of data used in cross-sectional analysis.
| Supermarket group | Checkout food policy category | UK grocery market share (%) | Annual unit purchases of common checkout foods (1,000s) | ||
|---|---|---|---|---|---|
| 2016 | 2017 | 2016 | 2017 | ||
| 1 | Clear and consistent | 4.3 | 4.7 | 15,203 | 18,752 |
| 2 | Clear and consistent | 28 | 27.5 | 218,200 | 247,600 |
| 3 | Clear and consistent | 6.0 | 7.0 | 16,313 | 14,585 |
| 4 | Vague or inconsistent | 5.0 | 4.7 | 17,066 | 14,870 |
| 5 | Vague or inconsistent | 3.1a | 3.1a | 30,603 | 34,097 |
| 6 | Vague or inconsistent | 10.3 | 10.0 | 90,969 | 54,069 |
| 7 | Vague or inconsistent | 15.0 | 15.0 | 100,100 | 114,700 |
| 8a | Vague or inconsistent | 15.5 | 14.9 | 53,484 | 48,554 |
| 8b | Absent | 0.8 | 0.9 | 33,787 | 34,029 |
| 9 | Absent | 6.2 | 6.0 | 94,652 | 85,991 |
| Total | - | 94.2 | 93.8 | 670,377 | 667,247 |
aEstimated from 2017 annual reports.