Health-care determinants of mortality and recovered cases from COVID-19: Do heath systems respond COVID-19 similarly?

BACKGROUND: The COVID-19 pandemic has spread rapidly across the world and has currently impacted most countries and territories globally. This study aimed to identify health-care determinants of mortality and recovery rates of COVID-19 and compare the efficiency of health systems in response to this pandemic. MATERIALS AND METHODS: A cross-sectional study was conducted using data obtained from the World Bank database, that provides free and open access to a comprehensive set of health- and socioeconomic-related data, by September 12, 2020. An adjusted linear regression model was applied to determine predictors of mortality (per 1 million population [MP]) and recovery rates (per 1 MP) in the included countries. One-way analysis of variance was applied to assess health systems' efficiency in response to COVID-19 pandemic using mortality and recovery rate (output variables) and current health expenditure (CHE) per capita (input variable). RESULTS: Globally, San Marino and Qatar had the highest mortality rate (1237/1 MP) and confirmed case rate (43,280/1 MP) until September 12, 2020, respectively. Iran had a higher mortality rate (273/1 MP vs. 214.5/1 MP) and lower recovery rate (4091.5/1 MP vs. 6477.2/1 MP) compared to countries with high CHE per capita. CHE per capita (standardized coefficient [SC] = 0.605, P < 0.001) and population aged 65 years and over as a percentage of total population (SC = −0.79, P < 0.001) significantly predicted recovered cases from COVID-19 in the included countries. CONCLUSION: This study revealed that countries with higher CHE per capita and higher proportion of older adults were more likely to have a higher recovery rate than those with lower ones. Furthermore, our study indicated that health systems with higher CHE per capita statistically had a greater efficiency in response to COVID-19 compared to those with lower CHE per capita. More attention to preventive strategies, early detection, and early intervention is suggested to improve the health system efficiency in controlling COVID-19 and its related mortalities worldwide.