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This paper uses panel data from inland provinces of China to perform a fixed effect regression and finds that the development of the digital economy has a significant promotional effect on the health of residents. Then, the population ageing rate is further used as a threshold variable for a threshold regression, and the relationship between the development of the digital economy and the health of residents from the perspective of ageing is discussed. The empirical results show that the ageing of the population will reduce the role of the digital economy in promoting residents' health. There is a non-linear single threshold effect between the development of the digital economy and residents' health indicators. In areas of China with a better developed digital economy, when the ageing rate exceeds the threshold, the positive impact of the development of the digital economy on population health has increased compared with the population ageing below the threshold. These asymmetric developments are closely related to economic development, historical and cultural factors, and policies formulated by the government. Therefore, as the digital economy continues to advance, the government should also provide health services fairly and efficiently, and formulate effective Internet assistance policies for the elderly so that the development of the digital economy can more comprehensively promote the health of residents of all ages.

Purpose To estimate the prevalence, causes and risk factors of bilateral visual impairment in rural areas of Tianjin, China. Methods A large population‐based, cross‐sectional study. A stratified random cluster sampling method was used to investigate 12 233 participants in all age groups living in rural Tianjin. Participants completed questionnaires and received professional ophthalmology examinations. Results According to World Health Organization best‐corrected visual acuity (BCVA) criteria, the crude prevalence of bilateral visual impairment (BCVA < 20/63), bilateral low vision (BCVA < 20/63 to ≥20/400) and bilateral blindness (BCVA < 20/400) was 2.53%, 2.40% and 0.14% (age‐ and gender‐standardized prevalence was 1.86%, 1.76% and 0.11%). The prevalence increased with age and was higher in women than men. The most common causes of bilateral visual impairment in the total population were cataract (48.39%), refractive error/amblyopia (17.74%), age‐related macular degeneration (AMD) (10.00%), diabetic retinopathy (5.81%) and glaucoma (3.87%). For participants younger than 50 years, refractive error/amblyopia was the leading cause of low vision and blindness, while cataract was the major cause in the participants over 50. Female gender, older age and self‐reported diabetes were associated with increased risks of visual impairment. Conclusion The age‐ and gender‐standardized prevalence of low vision, especially in the older group (50+), was higher in this study compared with previous studies in China. Refractive error/amblyopia was the leading cause of bilateral visual impairment in younger group, while cataract was the primary cause in the older group. These findings will provide useful information for planning comprehensive eye healthcare programmes in China.

This paper aimed to identify the relationship between the pressure to reach economic growth targets and residents' health by applying a panel fixed effects model, a Sobel-Goodman mediation effects test and a regulatory effects model to the inland provinces of China. The empirical results verify that the pressure to reach economic growth targets in these regions reduces the level of residents' health. Moreover, the effect in developing regions is significantly stronger than that in developed regions, and the effect in the northern region is significantly stronger than that in the southern region. The mediation effects test found that the pressure to reach economic growth targets has led to an upsurge in PM2.5 concentration and an increase in the output of industrial solid waste, thereby threatening residents' health. The regulatory effects model highlights that enhancing public awareness could weaken the negative impact of the pressure to reach economic growth targets on residents' health, while the expansion of industrial production will aggravate the negative impact. In the process of economic growth, the government should set reasonable economic growth targets, pay attention to the construction of the environmental protection legal system, implement energy- conservation and emission reduction measures and increase public awareness of environmental protection to ensure residents' health.

Previous studies have not adequately articulated the intergenerational differences in social identity of rural–urban migrants in China. Using survey data from Wuhan, China, the study tests three hypotheses on intergenerational differences in rural–urban migrants’ social identity based on first-generation and new-generation migrants’ attitudes toward rural and urban society. Results suggest that first-generation migrants are more likely to view themselves as rural rather than urban citizens. However, new-generation migrants tend to regard themselves as neither peasants nor urban citizens, which means that their identity reconstruction is at a stalled status. The identity perplexity of new-generation migrants suggests that they may be in danger of falling into the second-generation decline because there is a mismatch between their aspirations and the practical situation of their identity integration. This article highlights that when analyzing rural–urban migrants’ social identity, it is very important to consider the role of generation and rural–urban migrants’ attitudes toward their background society. Furthermore, the study suggests that in a rural–urban dichotomized society without institutional and social support, rural–urban migrants’ identity integration will not be achieved. Therefore, the Chinese government needs to build an institutionally and socially inclusive society.