Wine Information Council

BACKGROUND: Studies have indicated an increasing proportion of heavy drinking among middle-aged and older Danes. Trends in consumption are often extremely sensitive to influence from various components of the time trends but only few have explored the age, period and cohort-related influences on late life alcohol consumption. By using age, period, and cohort modeling this study explores the time trends in heavy drinking.

METHODS: Data derive from five National Health and Morbidity Surveys conducted by the Danish National Institute of Public Health in 1987, 1994, 2000, 2003, and 2005. A total of 15,144 randomly selected Danes between the age of 50 and 74 were interviewed about their alcohol intake on the last weekday and their alcohol intake in the last week. By applying the age-period-cohort model the probability of heavy alcohol drinking is estimated to separate the influence of age, period (calendar time) and cohort (year of birth).

RESULTS: The unadjusted probability of heavy drinking declines by age and increases by calendar year and year of birth for both men and women. However, the negative effect of age is attenuated for women when adjusted for birth cohort, indicating that the proportion of heavy drinking women increases in younger birth cohorts. This trend is not observed for men as their drinking pattern mainly increase slightly by calendar year.

CONCLUSIONS: Our Danish observations for older aged individuals correspond to the social and cultural changes in the 1960s and 1970s that possibly have affected the drinking behavior of the cohorts. Time trend analyses, such as this may serve as an excellent opportunity to extrapolate and forecast alcohol mortality and morbidity.

Dietary ethanol (alcohol) is the most widely consumed drug worldwide. High levels of mortality, morbidity, and social malaise are associated with abuse of alcohol, and increasing numbers of women and youth are abusing alcohol. However, strong epidemiological data demonstrate a U- or J-shaped relationship between volume of alcohol consumed and all-cause mortality or disease burden. Moderate alcohol consumption is associated with a lower risk of all-cause mortality and disease burden than are abstinence and immoderate drinking. A brief review of the absorption, distribution, metabolism, and excretion of ethanol is provided with a discussion of the impact of gender differences. Potential mechanisms by which ethanol, ethanol metabolites, and (or) phytochemicals, as associated with different types of ethanol-containing beverages, are discussed in regards to the beneficial and detrimental impacts they may have on physiological system functioning and mortality or disease burden. Per capita consumption of ethanol-containing beverages varies across geo-political regions worldwide. A more recent research focus is the impact of consumption patterns on consumption volumes as they relate to disease and mortality. Certain drinking patterns moderate overall volume of ethanol consumption. Thus, an emerging approach to the study of alcohol consumption in populations is to consider both the volume and pattern of consumption as they relate to mortality and disease burden. Alcohol consumption patterns among athletes are discussed; physiological implications of alcohol abuse in this population are outlined. Current guidelines for the consumption of alcohol are reviewed. Alcohol consumption guidelines reflect the current scientific understanding of both the benefits of moderate alcohol consumption and the detriments of immoderate alcohol consumption.