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Table 2 Store-level Healthy Food Supply (HFS) and Healthy Eating Index-2010 of customer purchases (HEI), changes over time, 2017–2020, in Healthy Food Small Retailer Program (HFSRP) Stores versus Comparison Stores

From: A four-year observational study to examine the dietary impact of the North Carolina Healthy Food Small Retailer Program, 2017–2020

Store-level variables   Years     Overall Effects   
  HFSRP Status 2017 2018 2019 2020 Year HFSRP Year x HFSRP
Healthy Food Supply Score No 5.12 (1.24) 4.51 (1.19) 2.57 (1.01) 3.81 (1.10) 0.415 0.062 0.079
Yes 4.82 (1.12) 7.70 (1.18) 7.03 (1.09) 5.59 (1.22)    
p-net*   0.052 0.031 0.363    
Healthy Eating Index-2010 of customer purchases No 39.5 (3.97) 42.9 (3.90) 37.8 (3.23) 45.3 (3.53) 0.895 0.381 0.277
Yes 40.1 (3.56) 44.1 (3.87) 45.8 (3.52) 42.2 (3.93)    
p-net*   0.487 0.732 0.257    
  1. *P-net is the p-value for comparing changes from 2017 between HFSRP and comparison stores, so there is no p-net for 2017 because it is the baseline