Are price discounts on sugar-sweetened beverages (SSB) linked to household SSB purchases? – a cross-sectional study in a large US household and retail scanner database

Table 2 Summary of annual per capita purchase of sugar-sweetened beverages

	Annual per capita purchase
	Mean ounces (STD)	Median ounces (IQR)
Beverage category ^a
Overall	1251.7 (2242.6)	495.6 (153.0, 1394.9)
Carbonated soft drinks	932.6 (2047.9)	244.0 (48.0, 904.9)
Fruit drinks	319.2 (630.4)	103.1 (23.0, 348.4)
Exposure to price promotion described as annual promotion frequency ^b
Quartile 1, < 27% time experienced promotion	991.8 (1922.3)	330.7 (94.0, 1069.9)
Quartile 2, 27 to < 46%	1178.2 (2166.4)	460.9 (135.2, 1301.0)
Quartile 3, 46 to < 62%	1265.8 (2128.4)	545.0 (190.0, 1454.2)
Quartile 4, ≥ 62%	1566.3 (2645.2)	670.1 (250.9, 1739.5)
Exposure to price promotion described as annual promotion magnitude ^c
Quartile 1, experienced < 3.8% off the modal price	968.9 (1899.6)	306.7 (88.3, 1009.9)
Quartile 2, 3.0 to < 4.9% off	1169.7 (2225.8)	444.5 (140.1, 1273.4)
Quartile 3, 4.9 to < 5.8% off	1301.0 (2111.1)	580.8 (195.2, 1522.3)
Quartile 4, ≥ 5.8% off	1567.3 (2629.3)	673.2 (246.4, 1752.0)

^aBeverage categories were defined using the Produce Module Description (“Carbonated soft drinks” and “Fruit drinks”) in the Retailer Database. Diet beverages and 100% juice were excluded using information from UPC Description, Product Description, Formula Description, and Type Description in the Retailer Database. “Carbonated soft drinks” were primarily regular soda. “Fruit drinks” (AKA non-carbonated juice drinks, juice beverages, fruit cocktails, or fruit flavored drinks) were fruit-flavored, non-carbonated drinks with 0–50% fruit juice. Note that the dataset did not contain an indicator for energy drinks, thus, they were included in carbonated (e.g., Red Bull, Monster) and fruit drink (e.g., Gatorade) categories.
^bAnnual promotion frequency was calculated as: \( \frac{Weeks\ experiencing\ge 5\% magnitude\ of\ price\ promotion\ for\ the\ household}{Number\ of\ weeks\ in\ 2016.} \)
^cAnnual promotion magnitude was calculated as: \( \frac{\sum_{i=1}^{number\ of\ weeks\ in\ 2016} Promotion\ magnitude\ for\ the\ household\ in\ week\ i}{Number\ of\ weeks\ in\ 2016} \)

ISSN: 1475-2891