TABLE 2—

Beverage Consumption and Pre- to Posttax Change (%) in Consumption in Berkeley, CA, Versus Comparison Cities (Oakland and San Francisco, CA) Among 2679 Participants

	Berkeley, CA (n = 873)				Comparison Cities (n = 1806)
Consumption (Times/Day)	Unadjusted Pretax, Mean ±SD	Unadjusted Posttax,a Mean ±SD	Unadjusted Absolute Difference	Adjustedb Percent Changec	Unadjusted Pretax, Mean ±SD	Unadjusted Posttax,a Mean ±SD	Unadjusted Absolute Difference	Adjustedb Percent Changec	Ratio of Post- to Pretax Consumption in Berkeley Relative to Comparison Cities (n = 2679), Bb (95% CI)
SSBs	1.25 ±2.25	0.97 ±1.66	−0.28	−21	1.29 ±1.76	1.26 ±2.09	−0.03	+4	0.76 (0.58, 0.995)
Regular soda	0.47 ±1.40	0.34 ±0.86	−0.13	−26	0.44 ±0.79	0.47 ±1.11	+0.03	+10	0.67 (0.45, 1.00)
Sports drinks	0.18 ±0.49	0.12 ±0.42	−0.06	−36	0.18 ±0.45	0.17 ±0.56	−0.01	+21	0.53 (0.31, 0.91)
Energy drinks	0.09 ±0.51	0.05 ±0.24	−0.04	−29	0.07 ±0.28	0.07 ±0.32	0.00	−14	0.83 (0.38, 1.82)
Fruit drinks	0.28 ±0.57	0.26 ±0.65	−0.03	−13	0.39 ±0.79	0.34 ±0.81	−0.06	−12	0.99 (0.69, 1.44)
Sweetened coffee or tea	0.23 ±0.57	0.21 ±0.61	−0.02	−13	0.21 ±0.56	0.21 ±0.59	0.00	+22	0.71 (0.44, 1.15)
Waterd	3.50 ±3.24	5.84 ±10.38	+2.33	+63	3.98 ±3.12	4.69 ±3.53	+0.70	+19	1.37 (1.14, 1.64)

Note. CI = confidence interval; SSB = sugar-sweetened beverage.

^aPosttax data were collected approximately 12 months after pretax data collection, 8 months after elections, and 4 months after implementation of the tax.

^bAdjusted for gender, age, education, race/ethnicity, language, and neighborhood in which the survey was conducted. Generalized linear models were used with a γ distribution, log link, and robust standard errors.

^cFrom adjusted within-city ratio of post- to pretax consumption.

^dSample sizes for water included 2437—786 in Berkeley and 1651 in comparison cities.