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. Author manuscript; available in PMC: 2009 Sep 1.

Published in final edited form as: Alcohol Clin Exp Res. 2008 Jul 8;32(9):1623–1629. doi: 10.1111/j.1530-0277.2008.00741.x

Table 1.

Mean drink alcohol content in fluid ounces (1oz=29.6ml) by beverage type and county in the main study

	Number of drinks purchased	Mean Ethanol Ounces (S.E.)
	Number of drinks purchased	Beer (n=56)	Wine (n=131)	Spirits (n=288)
All	480	0.73 (0.02)	0.86^a (0.02)	0.79 (0.02)
Alameda	50	0.94 (0.24)	0.75 ^b (0.02)	0.92 (0.15)
Contra Costa	45	0.65 (0.06)	0.91 ^b (0.01)	0.80 (0.02)
Solano	48	0.71 (0.06)	0.91 ^b (0.04)	0.80 (0.06)
Yolo	42	0.67 (0.03)	0.83 (0.03)	0.70 (0.05)
Sacramento	44	0.71 (0.06)	0.90 (0.02)	0.69 (0.04)
San Joaquin	47	0.80 (0.08)	0.81 (0.02)	0.70 (0.06)
Marin	50	0.87 (0.07)	0.90 (0.04)	0.81 (0.08)
Napa	48	0.68 (0.06)	0.78 (0.04)	0.79 (0.04)
San Francisco	54	0.71 (0.02)	0.89 (0.10)	0.73 (0.01)
Sonoma	52	0.75 (0.03)	0.89 (0.03)	0.87 (0.04)

^a

Indicates wine has larger mean alcohol content than both beer and spirits (t-test; p≤0.05)

^b

Indicates significantly lower wine mean alcohol content for Alameda versus Contra Costa and Solano counties (t-test; p≤0.05)