Table 1.

Categalization of open coding.

Primary category	Original statement (initial concept)
A1 The base of the older adults is large	In November 2020, it reached 15.8 percent, higher than the average level of 13.3 percent in Beijing, and the total number reached 320,000.
A2 The older adults have a high demand for their services	In Jiangning, there is one older adults person in every four people, 98 percent of whom choose home care, and 40 percent of whom live in rural communities in the hilly areas of the area. When the older adults encounter difficult to eat, medical treatment, care, who should find who, how to pay, how to deal with disputes.	……	……
A23 strengthen personnel team building	To form a home care service team combining older adults care personnel, social workers, volunteers, family and social members.
A24 improve the service level of personnel	Strengthen the capacity building of management personnel, medical and health care professionals, and nursing staff, and carry out vocational and technical training and skill evaluation related to health for the older adults.