The indicators in the 2021 Global Health Security Index are embedded in an interactive model (available as an Excel workbook at the top of this page) that offers a wide range of analytical tools, thereby allowing a deeper investigation into measures of global health security. For example, users can filter countries by region, population, or income level, or directly compare any two countries. The model also includes data from the 2019 Global Health Security Index, allowing users to view country performance for both GHS Index years (note: data for 2019 have been re-scored to accommodate changes made to the GHS Index in 2021). A user can also examine correlations between indicators. Individual country profiles, which include the consulted sources and scoring justifications, are also included in the 2021 Global Health Security Index model, thus permitting a deeper dive into the health security conditions in each country.
The GHS Index model is designed to allow the users flexibility in how they analyze the data. Although the GHS Index model relies on a neutral weighting scheme for analysis, the weights assigned to each indicator can be changed by the user to reflect different assumptions about the importance of categories and indicators.
Finally, the model allows the final scores to be benchmarked against external factors that may potentially influence global health security, such as gross domestic product (GDP) per capita, the United Nations Development Programme’s (UNDP) Human Development Index, and many other relevant factors. The background indicators also include two COVID-19-specific metrics collected by the Economist Impact team: assessing if the country has made publicly available de-identified COVID-19 health surveillance data and contact tracing data.