Table 2.
Study variables at baseline (T1), follow-up (T2), change from T1 to T2 (T2 minus T1) and the percentage of participants with an increase, decrease or no change between time points (n 1200)
| Study variables | T1 | T2 | Δ | Increase | Decrease | No change | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n | % | Mean | sd | n | % | Mean | sd | Mean | sd | n | % Δ | n | % Δ | n | % | |
| Dietary outcomes | ||||||||||||||||
| Healthy diet | 5·0 | 1·6 | 4·9 | 1·6 | –0·11 | 1·3 | 363 | 30·1 | 430 | 36·0 | 407 | 33·9 | ||||
| Unhealthy diet | 10·9 | 2·6 | 10·7 | 2·6 | –0·24 | 2·1 | 389 | 32·0 | 499 | 42·0 | 312 | 26·0 | ||||
| Fruit/vegetable intake | 4·1 | 1·4 | 4·1 | 1·4 | –0·08 | 1·2 | 335 | 27·4 | 402 | 34·0 | 463 | 38·6 | ||||
| Diet quality | 68·9 | 7·1 | 69·0 | 7·0 | 0·07 | 5·8 | 582 | 48·2 | 537 | 45·0 | 81 | 6·8 | ||||
| Individual behaviours | ||||||||||||||||
| Frequency of eating meals bought from a canteen or takeaway food shop | 3·0 | 1·4 | 2·8 | 1·4 | –0·11 | 1·3 | 326 | 27·2 | 383 | 32·0 | 491 | 40·9 | ||||
| Frequency of eating meals bought from a restaurant or café | 2·4 | 1·2 | 2·4 | 1·2 | –0·07 | 1·1 | 306 | 25·5 | 377 | 31·5 | 517 | 43·1 | ||||
| Walk in neighbourhood to/from a café or restaurant | 56 | 4·7 | 46 | 3·8 | – | – | 38 | 3·2 | 48 | 4·0 | 1114 | 92·8 | ||||
| Perceptions of the local food environment | ||||||||||||||||
| Presence of a café or restaurant within 15 min walk of home | 472 | 39·5 | 291 | 24·4 | – | – | 149 | 12·4 | 330 | 27·5 | 721 | 60·1 | ||||
| Presence of a supermarket/greengrocer within 15 min walk of home | 669 | 55·8 | 292 | 24·3 | – | – | 104 | 8·7 | 481 | 40·1 | 615 | 51·2 | ||||
| Spatial exposure to the local food environment | ||||||||||||||||
| 1·6 km road network buffer: | ||||||||||||||||
| Count takeaway/fast food | 7·4 | 6·6 | 3·1 | 4·3 | –4·2 | 7·5 | 256 | 21·2 | 862 | 72·0 | 82 | 6·8 | ||||
| Count café restaurant | 3·5 | 8·1 | 0·8 | 3·4 | –2·6 | 8·2 | 139 | 11·4 | 742 | 62·0 | 319 | 26·6 | ||||
| Count convenience store | 2·9 | 2·3 | 1·0 | 1·4 | –1·8 | 2·7 | 184 | 15·2 | 826 | 69·0 | 190 | 15·8 | ||||
| Count supermarket/greengrocer | 4·5 | 3·4 | 1·5 | 2·1 | –3·0 | 3·8 | 179 | 15·3 | 869 | 72·0 | 152 | 12·7 | ||||
| MRFEI (%) | 28·4 | 17·6 | 18·0 | 27·2 | –10·2 | 32·1 | 300 | 24·8 | 766 | 64·0 | 134 | 11·2 | ||||
| Road network distance to nearest (km) | ||||||||||||||||
| Takeaway/fast food | 1·1 | 0·8 | 2·2 | 1·3 | 1·1 | 1·5 | 966 | 80·6 | 229 | 19·0 | 5·0 | 0·4 | ||||
| Café restaurant | 1·4 | 1·2 | 2·4 | 1·2 | 1·0 | 1·7 | 922 | 76·8 | 276 | 23·0 | 2·0 | 0·2 | ||||
| Convenience store | 1·0 | 0·7 | 1·6 | 0·9 | 0·7 | 1·1 | 912 | 75·9 | 287 | 24·0 | 1·0 | 0·1 | ||||
| Supermarket/greengrocer | 1·3 | 1·0 | 2·4 | 1·6 | 1·1 | 1·9 | 899 | 74·9 | 288 | 24·0 | 13 | 1·1 | ||||
MRFEI, modified retail food environment index (higher numbers mean a greater percentage of healthy food outlets).