Angie Shafei

1. Introduction China is the country with the largest older population in the world currently, with both the large absolute number of older people, and the rapid aging process, so the health problems of older adults are becoming increasingly prominent (1). The health of older adults is not only related to the quality of life of individuals and the burden of family life, but also related to the wellbeing of the whole society (2).

1. Introduction As the world’s largest aging population, China had 264.02 million people aged over 60 years in November 2020, showing an increase of 5.44% over the course of one decade (from 13.26% in 2010 to 18.70% in 2020) according to the data from the Seventh National Population Census of China (1, 2). Since the 1980s, China has implemented a relatively strict family planning policy that has reduced the number of newborns and led to a significant decline in fertility rates (3).

1. Introduction Over the past few decades, the population has begun to age rapidly, especially in China. According to data published by the National Health Commission, China entered an ageing society in 2000, and by 2035, the country will have over 400 million people over the age of 60, entering a stage of severe ageing at a rapid rate (1). Among these old people, nearly 60% of the adults population is distributed in rural areas (2).