Table 2

Participant demographics, shopping habits, lifestyle and anthropometry stratified by store
Store 1 Store 2 Store 3 Store 4 Store 5
n=77 n=90 n=135 n=153 n=100
Age (years) 45.4 ± 15.9 49.7 ± 16.8 44.4 ± 14.4 47.4 ± 17.3 55.7 ± 20.2**
Women (%) 42 (54.5%) 42 (47.2%) 63 (46.7%) 81 (52.9%) 73 (73.0%)++
Car ownership 70 (90.9%) 62 (68.9%) 69 (51.1%) 108 (70.6%) 83 (83.0%)+++
Residential area income ($)† $24 527 ($22 303, $28 448) $22812 ($20 560, $25 825) $23334 ($20 908, $27 235) $28962 ($22 446, $33 215) $45 595 ($35 659, $56 529)**
Minimum distance to store (km)†‡ 4.30 (2.83, 5.75) 1.32 (0.72, 1.96) 0.96 (0.57, 2.31) 1.23 (0.71, 2.64) 2.29 (1.50, 3.28)**
Transportation to store
       Car 70 (90.9%) 41 (45.6%) 48 (35.5%) 81 (52.9%) 82 (82.0%)+++
       Transit 4 (5.2%) 13 (14.4%) 18 (13.3%) 4 (2.6%) 7 (7.0%)
       Walking 2 (2.6%) 32 (35.6%) 55 (40.7%) 57 (37.3%) 8 (8.0%)
       Bicycle 0 (0%) 3 (3.3%) 12 (8.9%) 8 (5.2%) 0 (0%)
Frequency of shopping at this supermarket (per week) 1.2 ± 0.8 2.3 ± 2.1 1.9 ± 1.7 1.7 ± 1.8 1.6 ± 1.4**
Primary store for food shopping (%) 51 (66.2%) 46 (51.1%) 71 (52.6%) 55 (35.9%) 63 (63.0%)+++
Primary shopper in household (%) 64 (83.1%) 63 (70.0%) 111 (82.2%) 123 (80.4%) 80 (80.0%)
Grocery bill today $69.28 ± $66.25 $21.54 ± $24.26 $17.50 ± $26.35 $21.19 ± $26.45 $53.73 ± $48.43**
Distance to nearest produce store (blocks)† 5 (2, 7) 3 (2, 5) 3 (2, 5) 4 (2, 7) 4 (2, 6)**
Body mass index (kg/m2) 27.1 ± 4.3 27.6 ± 4.6 25.4 ± 4.7 25.1 ± 4.7 23.7 ± 4.3**

Categorical data presented as n(%). Continuous normally distributed variables presented as Mean ± SD, while variables not following normal distribution (indicated by †) presented as Median (25%, 75%).

ANOVA for overall comparison across stores: * p<0.05, ** p<0.001; Pearson Chi-square test: + p<0.05, ++ p<0.01, +++ p<0.001; ‡ assessed objectively using GIS; the rest of the variables self-reported.

Lear et al.

Lear et al. Nutrition Journal 2013 12:117   doi:10.1186/1475-2891-12-117

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