Spatiotemporal characteristics of health poverty and its associates among middle-aged and elderly populations in China: a CHARLS and statistical data analysis

ObjectiveTo explore spatiotemporal non-stationarity in health poverty prevalence and its influencing factors among middle-aged and elderly residents in China for providing evidence to promote comprehensive and effective management on health poverty alleviation in the populations. MethodsThe data of the analysis were extracted from four rounds of China Health and Retirement Longitudinal Survey (CHARLS) conducted in 2011, 2013, 2015, and 2018 across China, which collected the information on 37 296 households with family members aged ≥ 45 years. Other relevant data were extracted from the China Statistical Yearbook of 2012, 2014, 2016, and 2019, the China Health and Family Planning Statistical Yearbook of 2012 and 2016, the China Tertiary Industry Statistical Yearbook of 2014 and 2019, and from the Global Burden of Disease Network in 2019. Based on the self-developed indexes for measurement of multidimensional health poverty (MHP), we used the ordinary least squares model (OLS), the geographically weighted regre