Table 4.

Estimated Effect of the Guiding Stars System on the Log (Nutritional Effects per Product [ie, UPC] Purchased)

	Calories	Dietary Fiber	Protein	Omega‐3 Fatty Acids	Total Fat
Supermarket transaction data	−0.001	0.006**	0.001	0.045***	0.004
	(0.001)	(0.002)	(0.002)	(0.007)	(0.002)
Observations (store‐day)	23,429	23,429	23,429	23,429	23,429

	Saturated Fat	Trans Fat	Sodium	Sugar
Supermarket transaction data	0.000	−0.035***	0.003	−0.015***
	(0.003)	(0.006)	(0.003)	(0.003)
Observations (store‐day)	23,429	23,429	23,429	23,429

Clustered standard errors in parentheses. *p < 0.05, **p < 0.01, ***p < 0.001.

Each reported coefficient estimate in this table is obtained from a separate regression. Weekly, day of week, and store fixed effects are included in each regression. Results are weighted by Universal Product Code (UPC). The data compare intervention (Loblaws) relative to control (Zehrs) supermarkets from June 1, 2012, to February 28, 2013, with the postimplementation period after August 10, 2012. The unit of observation is store‐day. Results rounded to the nearest thousandth.