Variable | Description | Precedent for usea |
---|---|---|
1000 population | Density of food outlets per 1000 population/per km2, per LSOA | O’Dwyer & Coveney [25] | Maddock [26] | Mehta & Chang [27] Ball et al.[6] | Moore & Diez Roux [28] | Chou et al.[29] Mobley et al.[30] | Simmons et al.[31] Sturm & Datar [32] Black et al.[33] | Powell et al.[34] | Burgoine et al.[10] Cummins et al.[35] | Reidpath et al.[36] | Macdonald et al.[37] Macdonald et al.[16] |
km2 | ||
LSOA centroid | ||
Density per buffer at: | ||
400 m Euclidean radius | Counts of food outlets within 400/800/1000 m Euclidean radius buffers from population-weighted centroids of LSOA | |
800 m Euclidean radius | Austin et al.c[39] | Jeffery et al.c[41] | Laraia et al.c[42] Timperio et al.c[43] | Currie et al.c[40] Spence et al.c[44] | |
1000 m Euclidean radius | Apparicio et al.[11] | Smoyer-Tomic et al.[45] | Seliske et al.c[46] | |
400 m Street Network | Counts of food outlets within 400/800/1000 m street network buffers from population-weighted centroids of LSOA | Smith et al.c[47] |
800 m Street Network | ||
1000 m Street Network | ||
Proximity using: | ||
Euclidean distance | Euclidean or street network distance (m) from LSOA population-weighted centroids to nearest food outlet | Apparicio et al.[11] | Winkler et al.[12] | Bodor et al.[13] |
Street network distance | Zenk et al.b[14] | Pearce et al.[15] | Macdonald et al.[16] | Smith et al.[17] Pearce et al.[18] | Sharkey et al.[19] | Pearce et al.d[20] Sharkey & Horel [21] | Block et al.c[24] | Burdette & Whitaker [22] | Frank et al.c[23] |