Numerous sources of epidemiological information have been reviewed and compared for each indication (examples include medical journals, surveys, scientific literature, databases, registries, and other related disease-specific websites). Those sources with the most current, best sourced, and sound methodologies were chosen for inclusion in EpiSource.
Where available, the following data has been provided in tabular format:
- Prevalence
- Incidence
- Sex ratios / sex cohorts
- Age cohorts
- Ethnic cohorts
Population-based projections have been provided by overlaying prevalence and incidence statistics on the subject populations to calculate prevalent populations and annual incident cases, respectively. Where available, sex ratios are applied to population demographics to account for changes in sex distribution over time.
Due to the inherent difficulties associated with determining changes in prevalence and incidence statistics, projections are based on the most recent, reliable rates available.
An "extrapolate" function has been provided to give additional insight based on given data, in situations where more complete, or more fully integrated information is lacking. Extrapolation is not meant as a replacement for rigorous epidemiological analysis. It is recognized as having inherent shortcomings, which may result in inaccuracies.
The extrapolate function is based on the simple mean of the numbers being combined. Weightings are not given based on sex ratios, cohort sizes, or regional population size differences. The mean prevalence and incidence statistics are then applied to the subject population to provide an extrapolated prevalent population or number of incident cases.
Sources
The following information is collected for all sources used in the construction of the MedTRACK EpiSource database:
- Source
- Source Title
- Author
- Press Release/Abstract
- Publication Date
- Source URL
Background and Additional Information:
Background information (e.g., disease description, symptoms, risk factors, mortality, co-morbidities, age of onset, etc.) is cited from authoritative sources and provided for better understanding.
When information is well described and valuable, but voluminous or beyond the scope of the profile it is cited and linked in the "Useful Resources" section.
Sample Report