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A Spatio-Temporal Analysis of OECD Member Countries’ Health Care Systems: Effects of Data Missingness and Geographically and Temporally Weighted Regression on Inference

Author

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  • Peter Akioyamen

    (Statistics & Actuarial Sciences, Western University, London, ON N6A 5B7, Canada
    Computer Science, Western University, London, ON N6A 5B7, Canada)

  • Mehmet A. Begen

    (Statistics & Actuarial Sciences, Western University, London, ON N6A 5B7, Canada
    Epidemiology & Biostatistics, Western University, London, ON N6A 5B7, Canada
    Ivey Business School, Western University, London, ON N6G 0N1, Canada)

Abstract

Determinants of health care quality and efficiency are of importance to researchers, policy-makers, and public health officials as they allow for improved human capital and resource allocation as well as long-term fiscal planning. Statistical analyses used to understand determinants have neglected to explicitly discuss how missing data are handled, and consequently, previous research has been limited in inferential capability. We study OECD health care data and highlight the importance of transparency in the assumptions grounding the treatment of data missingness. Attention is drawn to the variation in ordinary least squares coefficient estimates and performance resulting from different imputation methods, and how this variation can undermine statistical inference. We also suggest that parametric regression models used previously are limited and potentially ill-suited for analysis of OECD data due to the inability to deal with both spatial and temporal autocorrelation. We propose the use of an alternative method in geographically and temporally weighted regression. A spatio-temporal analysis of health care system efficiency and quality of care across OECD member countries is performed using four proxy variables. Through a forward selection procedure, medical imaging equipment in a country is identified as a key determinant of quality of care and health outcomes, while government and compulsory health insurance expenditure per capita is identified as a key determinant of health care system efficiency.

Suggested Citation

  • Peter Akioyamen & Mehmet A. Begen, 2023. "A Spatio-Temporal Analysis of OECD Member Countries’ Health Care Systems: Effects of Data Missingness and Geographically and Temporally Weighted Regression on Inference," IJERPH, MDPI, vol. 20(13), pages 1-18, June.
  • Handle: RePEc:gam:jijerp:v:20:y:2023:i:13:p:6265-:d:1184285
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    References listed on IDEAS

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