摘要
Summary What is already known about this topic?Greenness,which refers to the density of vegetated land,has been identified as an essential component of a healthy built environment for human health.Residential environment plays a critical role in the progression of early-onset or late-onset asthma.What is added by this report?Based on the China Health and Retirement Longitudinal Study from 2011 to 2018,this study indicates a negative association between greenness and asthma in the middle-aged and elderly population.
基金
Supported by the State Scholarship Fund of China Scholarship Council(grant no:202006015008)
the Fundamental Research Funds for the Central Universities(73201Y2206)
the Clinical Medicine Plus X-Young Scholars Project of Peking University(PKU2019LCXQ008)。
