Recent epidemiological and social studies have increasingly pointed to the importance of drinking patterns in explaining consequences of alcohol consumption. This paper presents recommendations for research in the area based on the presentations and discussions of the first "International Conference on Social and Health Effects of Different Drinking Patterns" held in Toronto in November 1995. In particular, the social dimension in pattern research, and the relationship between patterns of drinking and casualties as well as social harm, are stressed. The paper also argues for better theories, incorporating knowledge from related basic disciplines. In addition, we emphasize the need for improved methodologies and standardized methods for assessing drinking patterns. Finally, implications of research on drinking patterns for policy and programme development are discussed.
Research on selected consequences of alcohol use are reviewed in terms of how alcohol use is measured and reported in research designs common to that area of study. In addition, evidence of the probable underlying mechanisms by which alcohol leads to the various consequences is examined, particularly in relation to the aspects of drinking pattern which are theoretically most relevant to the outcome. There is considerable variation in the degree to which research in these areas stresses pattern of drinking (as opposed to average amount consumed or total dose). Ideally, theoretical consideration of underlying causal links should determine data collection and analysis techniques.
To determine whether drinking water contaminated with antimicrobial-resistant E. coli is associated with the carriage of resistant E. coli, selected households sending water samples to Ontario and Alberta laboratories in 2005-2006 were asked to participate in a cross-sectional study. Household members aged ≥12 years were asked to complete a questionnaire and to submit a rectal swab. In 878 individuals, 41% carried a resistant strain of E. coli and 28% carried a multidrug-resistant strain. The risk of carriage of resistant E. coli was 1·26 times higher for users of water contaminated with resistant E. coli. Other risk factors included international travel [prevalence ratio (PR) 1·33], having a child in nappies (PR 1·33), being male (PR 1·33), and frequent handling of raw red meats (PR 1·10). Protecting private water sources (e.g. by improving systems to test and treat them) may help slow the emergence of antimicrobial resistance in E. coli.
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