datafiles-The evolution of comorbidities in chronic diseases among Chinese middle-aged and elderly people evidence from the CHARLS (2015--2020)s.zip

The data of 10,089 participants extracted from the China Health and Retirement Longitudinal Study (CHARLS 2015–2020) were used for the fixed-cohort analysis.本研究采用提取自2015-2020年中国健康与养老追踪调查（China Health and Retirement Longitudinal Study，CHARLS）的10089名参与者的数据，开展固定队列分析。