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Table 2 Impact of the intervention on the purchases of inexpensive foods with good nutritional quality

From: In-store marketing of inexpensive foods with good nutritional quality in disadvantaged neighborhoods: increased awareness, understanding, and purchasing

Food category Control stores (n = 3974) Intervention stores (n = 2651) P year P type of store P-interaction year*type of store
2013 2014 2013 2014
Mean (SD) Mean (SD) Mean (SD) Mean (SD)
All 21.4 (12.0) 22.0 (13.8) 20.0 (11.7) 21.4 (14.7) <0.001 <0.001 0.235
Fruits and vegetables 50.7 (18.9) 52.4 (21.5) 48.3 (20.7) 52.5 (24.1) <0.001 <0.001 0.001
Starches 28.7 (26.0) 29.8 (28.1) 25.7 (24.6) 29.8 (29.3) <0.001 0.000 0.011
Meat/Fish/Eggs 15.0 (23.0) 14.7 (24.9) 22.4 (29.9) 22.2 (32.1) 0.006 <0.001 0.363
Mixed dishes and sandwiches 1.2 (6.6) 1.3 (6.2) 1.3 (6.8) 1.7 (8.7) 0.009 0.031 0.056
Dairy products 19.5 (21.2) 19.8 (23.1) 23.1 (23.5) 22.7 (26.6) 0.867 <0.001 0.363
Others 0.4 (2.3) 0.6 (4.2) 0.6 (3.1) 0.8 (4.4) 0.015 0.010 0.297
  1. Average contribution (%) of inexpensive foods with good nutritional quality to the total spending on food of member-customers, overall and by food category. Purchases of promoted products were compared based on the type of store (intervention/control) and year (2013/2014) using a generalized linear mixed model