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Alcohol Clin Exp Res. 2002 Oct;26(10):1561-7.

Survey data need not underestimate alcohol consumption.

Author information

1
Alcohol& Public Health Research Unit, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand. s.casswell@massey.ac.nz

Abstract

BACKGROUND:

There are two main ways to assess alcohol consumption in a population: per capita estimates, usually derived from data on taxable alcohol available for consumption, and population-based surveys. Population-based survey estimates of alcohol consumption are often compared with estimates based on taxable alcohol available for consumption as a measure of validity. Discrepancies between these two measures occur, with the majority of population-based surveys substantially underestimating taxable alcohol available for consumption.

METHODS:

This article argues, however, that high proportions of taxable alcohol available for consumption can be accounted for by population-based surveys and reports a method of data collection for a national alcohol survey that has accounted for 94% of the taxable alcohol in New Zealand.

RESULTS:

The ability of the survey methodology to account for this proportion of taxable alcohol is likely due to the within-location beverage-specific alcohol consumption measures used in the survey, the process of recording the quantity of alcohol consumed, the use of a computer-assisted telephone interview system, and the population coverage achieved.

CONCLUSIONS:

Population-based surveys using the methodology outlined in this article may account for, if not exceed, the high proportions of taxable alcohol available for consumption estimates for some populations.

[Indexed for MEDLINE]

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