TABLE 1—

Relative Change in Sales of Red, Yellow, and Green Cafeteria Items During the 2-Phase Intervention: A 2-Phase Labeling and Choice Architecture Intervention; Massachusetts General Hospital, Boston; December 1, 2009–September 1, 2010

Sale Item	Baseline,a %	Phase 1: Labeling,b Relative % Change in Sales From Baseline	Phase 2: Labeling + Choice Architecture,c Relative % Change in Sales From Phase 1
Total sales
All red items	24.9	−9.2	−4.9
All yellow items	32.9	1.2	3.9
All green items	42.2	4.5	−0.5
Beverage sales
All red beverages	26.1	−16.5	−11.4
All yellow beverages	21.6	−0.2	1.1
All green beverages	51.7	9.6	4.0
Diet soda	19.6	9.2	−0.8
Regular soda	19.5	−23.1	−5.9
Bottled water	13.6	−2.4	25.8

Note. P < .001 for all.

^aFor all items sold, n = 977 793; for all beverages sold n = 199 513.

^bFor all items sold, n = 988 734; for all beverages sold n = 202 098.

^cFor all items sold, n = 958 197; for all beverages sold n = 198 557.