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Modeling Alcohol Consumption in Rodents Using Two-Bottle Choice Home Cage Drinking and Microstructural Analysis
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Modelling over week patterns of alcohol consumption.

Carla Lopes1, Valeska Lima Andreozzi, Elisabete Ramos

  • 1Department of Hygiene and Epidemiology, University of Porto Medical School, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal. carlal@med.up.pt

Alcohol and Alcoholism (Oxford, Oxfordshire)
|October 25, 2007
PubMed
Summary

Alcohol consumption patterns show distinct weekly trends, with increased weekend drinking for mealtime-only consumers and a linear rise for anytime drinkers. Higher education influences risk differently based on drinking behavior.

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Area of Science:

  • Epidemiology
  • Statistical Modeling

Background:

  • Understanding weekly alcohol consumption patterns is crucial for public health.
  • Socio-demographic factors can influence drinking behaviors.

Purpose of the Study:

  • To analyze weekly alcohol consumption patterns.
  • To examine the influence of socio-demographic characteristics.
  • To evaluate complex statistical models for pattern identification.

Main Methods:

  • Utilized 7-day dietary records from 496 participants (aged >=40).
  • Applied Bayesian generalized additive mixed models (GAMM).
  • Employed multinomial and gamma models for different consumption behaviors and amounts.

Main Results:

  • Identified two distinct patterns: weekend surge for mealtime-only drinkers and linear increase for anytime drinkers.
  • Higher education showed a protective effect for mealtime-only drinkers but a risky effect for anytime drinkers.
  • Total alcohol intake mirrored the mealtime-only drinking pattern.

Conclusions:

  • Alcohol consumption escalates throughout the week.
  • Two primary drinking patterns were identified based on behavior.
  • The chosen statistical methodology was key to revealing these patterns.