| low SES | medium SES | high SES | p-value |
---|---|---|---|---|
(n = 65) | (n = 89) | (n = 24) | ||
Mean distance from the CBD (km) | 23.9 | 16.0 | 13.3 | Â |
Range (km) | 3.9–51.4 | 0.2–51.9 | 2.9–28.1 |  |
Total number of advertisements | 1196 | 4855 | 880 | Â |
Mean number (SD) of advertisements per station | 18.4 (42.4) | 54.6 (129.7) | 36.7 (57.0) | 0.02 |
Number (%) of food and beverage advertisements | 568 (47.5) | 1078 (15.6) | 269 (30.6) | Â |
Mean number (SD) of food and beverage advertisements per station | 8.7 (19.7) | 12.1 (22.4) | 11.2 (11.7) | 0.59 |
Estimated marginal mean (SE) | 12.1 (1.3) | 9.4 (1.1) | 11.9 (2.1) | 0.24 |
Number (%) of core food advertisements | 55 (4.6) | 75 (1.5) | 24 (2.7) | Â |
Mean number (SD) of core food advertisements per station | 0.9 (1.9) | 0.8 (1.9) | 1.0 (1.3) | 0.93 |
Estimated marginal mean (SE) | 1.1 (0.2) | 0.7 (0.2) | 1.0 (0.3) | 0.15 |
Number (%) of discretionary food advertisements | 501 (41.9) | 892 (18.4) | 222 (25.2) | Â |
Mean number (SD) of discretionary food advertisements per station | 7.7 (18.2) | 10.0 (19.4) | 9.3 (10.2) | 0.73 |
Estimated marginal mean (SE) | 10.5 (1.3) | 7.8 (1.1) | 10.0 (2.1) | 0.26 |
Number (%) of miscellaneous food advertisements | 12 (1.0) | 111 (2.3) | 23 (2.6) | Â |
Mean number (SD) of miscellaneous food advertisements per station | 0.2 (0.8) | 1.3 (3.5) | 1.0 (1.9) | 0.02 |
Estimated marginal mean (SE) | 0.6 (0.3) | 1.0 (0.2) | 0.9 (0.4) | 0.57 |