Table 1. Intervention characteristics, store samples, and data availability.

Intervention name, retailer, strategy, and description	Target foods/categories	Intervention and baseline periods	Store sample	Data availability	Store-level characteristics available
Frozen chips range changes (Retailer A, Availability) Stocking lower fat frozen chips next to regular chips in stores where only regular chips were available before	Regular fat frozen chips; Lower fat frozen chips	Intervention period: January 21, 2019 to September 22, 2019 Baseline period: January 21, 2018 to September 22, 2018	N = 34 intervention N = 146 control	January 1, 2018 to November 24, 2019 15,841 data points (store weeks)	IMD; Ethnicity
Biscuit range changes (Retailer B, Availability) Change in biscuits range to increase the availability of lower calorie packs (<100 kcal/serving or individual bag) and decrease the availability of higher calorie packs	Regular range biscuits (≥800 kcal/entire pack); Lower energy range biscuits (<800 kcal/entire pack)	Intervention period: May 19, 2019 to August 11, 2019 Baseline period: May 20, 2018 to August 12, 2018	N = 8 intervention N = 8 control	May 13. 2018 to December 29, 2019 1,344 data points (store weeks)	IMD
Breakfast cereal positioning (Retailer B, Positioning) Positioning higher fibre cereal to be located at eye level within an aisle, displacing regular breakfast cereal	Regular breakfast cereal; Higher fibre breakfast cereal	Intervention period: May 19, 2019 to August 11, 2019 Baseline period: May 20, 2018 to August 12, 2018	N = 7 intervention N = 7 control	May 20, 2018 to December 29, 2019 1,127 data points (store weeks)	IMD
Promotional marketing with Disney characters (Retailer B, Promotions) Educational material that conveys information about nutrition and health using Disney characters, including children packs and collectables, point-of-sale signage, recipe cards, shelf markers, leaflets, emails and newsletters, magazine articles, and in-store displays. This was coupled with loyalty card rewards (points) when purchasing the target products	Selected fruits (mini apples and oranges); Nonsugar baked beans	Fruit promotions Intervention period: August 18, 2019 to October 6, 2019 Baseline period: September 9, 2018 to October 7, 2018 Baked beans promotions Intervention: period: September 1, 2019 to October 6, 2019 Baseline period: September 9, 2018 to October 7, 2018	N = 37 intervention (No control stores were eligible because this intervention was implemented nationwide)	September 9, 2018 to January 1, 2020 2,649 data points (store weeks)	IMD
Fruit and vegetable price promotions (Retailer A, Promotions) Temporary price reductions and promotional space for a selection of seasonal fruits and vegetables	Selected seasonal fruits and vegetables	Intervention period: May 29, 2019 to November 24, 2019 Baseline period: May 29, 2018 to November 24, 2018	N = 34 intervention N = 151 control	January 1, 2018 to November 24, 2019 17,381 data points (store weeks)	IMD; Ethnicity
Shelf labelling beverages of nonalcoholic beverage categories (Retailer C, Signage) Shelf labels highlighting lower sugar and sugar-free beverages within aisles	Regular beverages; Lower/nonsugar beverages	Intervention period: May 27, 2019 to August 26, 2019 Baseline period: May 28, 2018 to August 27, 2018	N = 18 intervention N = 65 control	December 25, 2017 to September 17, 2018 and December 24, 2018 to September 16, 2019 6,474 data points (store weeks)	IMD

IMD, Index of Multiple Deprivation.