Kerr William C, Greenfield Thomas K, Tujague Jennifer, Brown Stephan E
Alcohol Research Group, Public Health Institute, Berkeley, CA, USA.
Alcohol Clin Exp Res. 2005 Nov;29(11):2015-21. doi: 10.1097/01.alc.0000187596.92804.bd.
Empirically based estimates of the mean alcohol content of beer, wine and spirits drinks from a national sample of US drinkers are not currently available.
A sample of 310 drinkers from the 2000 National Alcohol Survey were re-contacted to participate in a telephone survey with specific questions about the drinks they consume. Subjects were instructed to prepare their usual drink of each beverage at home and to measure each alcoholic beverage and other ingredients with a provided beaker. Information on the brand or type of each beverage was used to specify the percentage of alcohol.
The weighted mean alcohol content of respondents' drinks was 0.67 ounces overall, 0.56 ounces for beer, 0.66 ounces for wine and 0.89 ounces for spirits. Spirits and wine drink contents were particularly variable with many high-alcohol drinks observed.
While the 0.6-ounce of alcohol drink standard appears to be a reasonable single standard, it cannot capture the substantial variation evident in this sample and it underestimates average wine and spirits ethanol content. Direct measurement or beverage-specific mean ethanol content estimates would improve the precision of survey alcohol assessment.
目前尚无基于实证的美国饮酒者全国样本中啤酒、葡萄酒和烈性酒饮品平均酒精含量的估计值。
重新联系了2000年全国酒精调查中的310名饮酒者样本，让他们参与一项电话调查，询问他们所饮用饮品的具体问题。受试者被要求在家中准备他们通常饮用的每种饮品，并使用提供的烧杯测量每种酒精饮料及其他成分。利用每种饮品的品牌或类型信息来确定酒精百分比。
受访者饮品的加权平均酒精含量总体为0.67盎司，啤酒为0.56盎司，葡萄酒为0.66盎司，烈性酒为0.89盎司。烈性酒和葡萄酒饮品的含量差异尤其大，观察到许多高酒精含量的饮品。
虽然0.6盎司酒精饮品标准似乎是一个合理的单一标准，但它无法体现该样本中明显的巨大差异，并且低估了葡萄酒和烈性酒的平均乙醇含量。直接测量或针对特定饮品的平均乙醇含量估计将提高调查酒精评估的精度。
