The OECD survey on Health Systems Characteristics (HSC) aims to collect key policy and institutional characteristics by which heath care systems can be meaningfully differentiated from one another (Paris, Devaux and Wei, 2010[1]).
The HSC survey provides a structured snapshot of the key characteristics that underpin healthcare insurance and healthcare delivery in a given country. It describes arrangements to organise population coverage, the financing of healthcare insurance and delivery, the organisation of healthcare delivery, focusing on the public/private mix of healthcare provision, provider payment schemes, user choice and competition among providers, as well as the regulation of healthcare supply and prices. The survey also describes key aspects of governance and resource allocation in health systems, such as decentralisation in decision-making and the nature of budget constraints.
The Secretariat collected information on health system characteristics through surveys carried out in 2008, 2012, 2016, and 2023. The 2008 survey included 81 questions, often with multiple items and sub-questions for further details. The 2012, 2016, and 2023 surveys comprised 91, 78, and 77 questions, respectively.
The survey was filled in by 29 OECD member states in 2008. For the 2012 round, the then four new OECD member countries – Chile, Estonia, Israel and Slovenia – filled in the survey too, for a total of 33 countries. 28 OECD member countries and Costa Rica and South Africa filled in the survey in 2016 and 32 OECD countries and Bulgaria replied to the survey in 2023. Twenty-one Latin American and Caribbean countries filled in the survey in 2018 (Lorenzoni et al., 2019[2]).
Countries reviewed responses to the different rounds of the OECD surveys on health system characteristics to also verify the consistency of responses over time. Furthermore, the main characteristics of the health systems of OECD countries are publicly available in two datasets on the OECD data platform (https://data-explorer.oecd.org/). These datasets consist of results for the 2023 round as well as results for the 2016 and 2012 rounds of the survey and can be searched according to country, version of the survey, and question. The data can be displayed online or downloaded in an excel format file.
The raw responses to the survey are of interest for certain issues, but for the purpose of providing input to performance analyses, a more manageable set of indicators is necessary. A set of health system characteristics indicators that can help identify cross-country differences in health system performance was developed, informed by discussion with countries (Table A A.1) (de la Maisonneuve et al., 2016[3]; Lorenzoni et al., 2018[4]; Joumard, André and Nicq, 2010[5]). Additional data sources, such as the System of Health Accounts (SHA), were used to complement responses as appropriate, with the implicit assumption that these captured well a policy dimension.