Journal:Epidemiological data challenges: Planning for a more robust future through data standards

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Full article title Epidemiological data challenges: Planning for a more robust future through data standards
Journal Frontiers in Public Health
Author(s) Fairchild, Geoffrey; Tasseff, Byron; Khalsa, Hari; Generous, Nicholas; Daughton, Ashlynn R.;
Velappan, Nileena; Priedhorsky, Reid; Deshpande, Alina
Author affiliation(s) Los Alamos National Laboratory
Primary contact Email: gfairchild at lanl dot gov
Editors Efird, Jimmy T.
Year published 2018
Volume and issue 6
Article # 336
DOI 10.3389/fpubh.2018.00336
ISSN 2296-2565
Distribution license Creative Commons Attribution 4.0 International
Website https://www.frontiersin.org/articles/10.3389/fpubh.2018.00336/full
Download https://www.frontiersin.org/articles/10.3389/fpubh.2018.00336/pdf (PDF)

Abstract

Accessible epidemiological data are of great value for emergency preparedness and response, understanding disease progression through a population, and building statistical and mechanistic disease models that enable forecasting. The status quo, however, renders acquiring and using such data difficult in practice. In many cases, a primary way of obtaining epidemiological data is through the internet, but the methods by which the data are presented to the public often differ drastically among institutions. As a result, there is a strong need for better data sharing practices. This paper identifies, in detail and with examples, the three key challenges one encounters when attempting to acquire and use epidemiological data: (1) interfaces, (2) data formatting, and (3) reporting. These challenges are used to provide suggestions and guidance for improvement as these systems evolve in the future. If these suggested data and interface recommendations were adhered to, epidemiological and public health analysis, modeling, and informatics work would be significantly streamlined, which can in turn yield better public health decision-making capabilities.

Keywords: data, computational epidemiology, public health, disease modeling, informatics, disease surveillance

Introduction

At the heart of disease surveillance and modeling are epidemiological data. These data are generally presented as a time series of cases, T, for a geographic region, G, and for a demographic, D. The type of cases presented may vary depending on the context. For example, T may be a time series of confirmed or suspected cases, or it might be hospitalizations or deaths; in some circumstances, it may be a summation of some combination of these (e.g., confirmed + suspected cases). G is most commonly a political boundary; it might be a country, state/province, county/district, city, or sub-city region, such as a postal code or United States (U.S.) Census Bureau census tract. Depending on the context, D may simply be the the entire population of G, or it might be stratified by age, sex, race, education, or other relevant factors.

Epidemiological data have a variety of uses. From a public health perspective, they can be used to gain an understanding of population-level disease progression. This understanding can in turn be used to aid in decision-making and allocation of resources. Recent outbreaks like Ebola and Zika have demonstrated the value of accessible epidemiological data for emergency preparedness and the need for better data sharing.[1] These data may influence vaccine distribution[2], and hospitals can anticipate surge capacity during an outbreak, allowing them to obtain extra temporary help if necessary.[3][4]

From a modeler's perspective, high-quality reference data (also commonly referred to as "ground truth data") are needed to enable prediction and forecasting.[5] These data can be used to parameterize compartmental models[6] as well as stochastic agent-based models[7][8][9][10][11], and they can also be used to train and validate machine learning and statistical models.

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References

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Notes

This presentation is faithful to the original, with only a few minor changes to presentation. In some cases important information was missing from the references, and that information was added.