Abstract P163: Global and Regional Consumption of Specific Dietary Fats and Dietary Cholesterol in 1990 and 2005: Systematic Analysis of Country-Specific Nutrition Surveys Worldwide
Background. Assessing the impact of diet on chronic diseases worldwide has been limited by availability only of food disappearance data rather than reliable and systematically assessed consumption data on dietary habits globally.
Objective. To review and access published and unpublished national diet surveys worldwide in a systematic and consistent way to produce comprehensive intake data of specific dietary fats and their uncertainties by country, region, age, and sex in 1990 and 2005.
Methods. We developed methods to identify, assess, and obtain exposure data (mean, SD) from nationally representative diet surveys worldwide on saturated, n-6, n-3 and trans fats, and dietary cholesterol. To address missing data and estimate mean intake, we developed and applied a multi-level hierarchical Bayesian model that accounted for country- and region-level data, measurement comparability, study representativeness, and diet assessment method. Time-varying country-level covariates were used to inform the estimates, including FAO food availability data, population, GDP, latitude, metabolic risks, and other diet covariates. Uncertainty of the estimates accounted for uncertainty from sampling and statistical modeling.
Results. We obtained relevant data (85% by direct author contact) from 76 nationally representative and 15 large regional surveys from 49 countries in 15 regions, covering 75% of the world’s population. Several countries and regions lacked representative data. Data were most frequently available for saturated fat and dietary cholesterol (Figure). Results for other fats will be presented at the meeting.
Conclusions. These new methods developed to systematically assess, compile and estimate the exposure distribution of specific dietary fats and cholesterol in a uniform fashion globally allow, for the first time, characterization of consumption habits and trends by country, region, age and sex. Such global assessment is imperative for estimating the impact of dietary fats on chronic diseases worldwide.
- © 2012 by American Heart Association, Inc.