Within the database of prevalence studies (published and unpublished) maintained by IDF, each is scored for quality against a number of criteria, including age of the study, representativeness, method of identifying diabetes, and so on.
Besides this, it shall be outlined the filter preparation tool for terminology extraction which has been especially designed for this work as well as the corpus representativeness measurement method employed.
To account for differences in missingness, representativeness and measurement methods and to incorporate and quantify uncertainty, we specified a Bayesian hierarchical model (using the DisMod-MR model developed as part the Global Burden of Disease Project) to estimate the mean sodium intake across the world by sex, age and country for two calendar years 1990 and 2010.
The model further accounted for differences in survey methods and representativeness, and sampling and modelling uncertainty.
These figures support the validity of our methods and representativeness of the GPs and patients included in the data set.
To verify representativeness, a questionnaire on methods of delivering chemotherapy was posted to research nurses and pharmacists in all other centres participating in the main trial.
Estimate consumption levels for each food by region, country, age, sex and time, accounting for differences in food intakes versus availability, survey methods and representativeness, and sampling and modelling uncertainty.
A hierarchical Bayesian model estimated mean food intake and associated uncertainty for each age-sex-country-year stratum, accounting for differences in intakes versus availability, survey methods and representativeness, and sampling and modelling uncertainty.
When various characteristics were separately evaluated, a significant independent heterogeneity was identified in the relation between FAO estimates and GDD intakes for many food groups according to age, sex, world region, time period of data collection, and survey assessment method and representativeness (Table 4 ).
Multiple sampling methods may limit representativeness of this cohort, and hence the generalizability of these findings.
