Key result
Adding questions about days with heavy drinking increased the estimated weekly per capita alcohol consumption among consumers from 74.5 grams to 77.1 grams (P<0.001).
Why the study?
Does adding questions on heavy drinking occasions decrease the underestimation of true alcohol consumption?
Cross-Sectional (n=930)
No
Does adding questions on heavy drinking occasions decrease the underestimation of true alcohol consumption?
Effect estimate: +3.5%
Absolute Event Rate: 77.1% vs 74.5%
p-value: p=<.001
Adding questions about heavy drinking occasions slightly decreases the underestimation of self-reported alcohol consumption.
Supports modest improvement in survey alcohol estimates; leaves open effects on clinical risk assessment or policy.
An adjusted quantity-frequency method, with questions on occasions with heavy drinking, was used to estimate the consumption of alcohol during the last 30 days. The purpose was to analyze if it was possible to decrease the underestimation of true alcohol consumption. The questionnaire was mailed to a randomized sample of 1,500 individuals, 20-75 years of age, living in the city of Malmö, Sweden; 930 persons (64.3%) participated. Data on alcohol consumption were validated by comparison to sales of alcohol for the city of Malmö. The estimated per capita consumption of alcohol in the population was equivalent to 77.0% of the registered sale of alcohol in Malmö. By adding days with heavy drinking, the estimated weekly per capita consumption of alcohol among the alcohol consumers increased from 74.5 grams to 77.1 grams (+3.5%; p < .001). Of the alcohol consumers, 15.1% increased their reported consumption. In order to decrease even more the underestimation of the true alcohol consumption, we suggest the use of questions about any alcohol consumption that deviates from the typical consumption of each individual.
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Göransson et al. (1994) conducted a cross-sectional in Alcohol consumption (n=930). Adding questions on days with heavy drinking vs. Standard quantity-frequency method was evaluated on Estimated weekly per capita consumption of alcohol (+3.5%, p=<.001). Adding questions about days with heavy drinking increased the estimated weekly per capita alcohol consumption among consumers from 74.5 grams to 77.1 grams (P<0.001).
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