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Table 4 Individual variable and composite scores by store type

From: Measuring the healthfulness of food retail stores: variations by store type and neighbourhood deprivation

Variable Premium supermarket Large supermarket Discount supermarket Small supermarket ‘World’ store Convenience store Petrol store Possible range f  
Median (IQR) d Min Max p-value
Composite score 1.7 1.7 0.3 0.9 -.04 -0.6 -0.9 -1.9 2.2 <0.001a
(1.2 to 1.8) (1.5 to 1.9) (0.1 to 1.0) (0.6 to 1.1) (-1.1 to 0.3) (-1.0 to 0.2) (-1.2 to -0.2)
Variety 8 8 -8 -6 -2 -9 -7 -25 35 <0.001a
(7 to 8) (6 to 9) (-10 to 1) (-8 to -2) (-5 to 0) (-11 to -7) (-8 to -5)
Price 0.03 -0.03 -0.01 0.02 0.04 0.03 0.02 Higher score is more healthful 0.002a
(0 to 0.05) (-0.04 to -0.01) (-0.04 to 0.01) (0.01 to 0.05) (-0.12 to 0.1) (-0.06 to 0.08) (-0.21 to 0.1)
Promotions 0.5 0 -1 -1 0 -1 -1 -5 7 <0.001a
(-1 to 1) (-1 to 1) (-3 to 0) (-2 to -1) (-0.4 to 0) (-1 to 0) (-1 to 0)
Shelf placement 5 7 7 5 0 -3 -5 -15 21 <0.001a
(4 to 7) (5 to 9) (4 to 9) (4 to 7) (-3 to 4) (-6 to 3) (-6 to 1)
Store placement 4 4 4 4 1 -4 -4 -15 21 <0.001a
(4 to 5) (4 to 5) (3 to 5) (3 to 4) (-4 to 5) (-6 to 2) (-6 to 1)
Quality 17 17 17 17 5 5 0 0 18 <0.001b
(17 to 17) (16 to 18) (15 to 18) (15 to 17) (0 to 10) (0 to 13) (0 to 8)
Healthier alternative 4 5 2 3 0 1 1 0 5 <0.001b
(4 to 5) (5 to 5) (2 to 3) (2 to 3) (0 to 1) (1 to 2) (0 to 2)
Nutrition information 13 14 13 15 4 11 9 0 15 <0.001b
(10 to 13) (12 to 15) (13 to 14) (15 to 15) (2 to 7) (9 to 13) (9 to 12)
Single sale of two fruitse 100% 97% 26% 87% 23% 19% 21% 0 2 <0.001c
  1. aOneway analysis of variance, bKruskal-Wallis test, cChi square test, dMedian and inter-quartile range (IQR) were provided for both parametric and non-parametric variables for ease of reading, ePercentage of two fruits available for single sale was provided because this variable was categorical, fPossible range of scores for each variable except composite score which shows actual range of composite score values.