Impact of national health city campaign on public health in China

Introduction Establishing a national health city is an important national policy aimed at optimizing urban environment and improving residents’ health. A rigorous evaluation of the policy’s impact on China’s public health is imperative. Such an evaluation would provide a scientific foundation for the continuous improvement of the policy and enhance the overall health of the population. Methods Based on the panel data of 84 prefecture-level cities in China from 2011 to 2023, this study takes healthy cities as a quasi-natural experiment, and employs a DID model to deeply explore the impact of the National Health City Campaign (NHCC) on public health in China. Results The research indicates that the policy has led to a decline in mortality rates and has contributed to the enhancement of public health in China to a certain extent. The impact of the NHCC varies across different regions, economic development levels, and population sizes. In addition, this study determined that the NHCC is capab