Table 2 Linear regression analysis model:* Means of the Wisconsin Retail Food Environment Index (WRFEI) according to the level of neighborhood-level economic hardship, overall and stratified for urbanicity

1st quartile: (least deprived)

1.77

ref.

1.94

ref.

1.22

ref.

2nd quartile:

2.14

vs. 1st

0.05

1.66

vs. 1st

0.10

2.09

vs. 1st

0.06

3rd quartile:

2.89

vs. 1st

<0.001

2.19

vs. 1st

0.18

3.21

vs. 1st

<0.001

4th quartile: (most deprived)

2.53

vs. 1st

<0.001

2.91

vs. 1st

<0.001

2.14

vs. 1st

0.04

Linear trend test

<0.001

<0.001

0.001