Table 1 Searching strategies

CNKI AND Wanfang, VIP, CSCD, CSSCI

GIS

OR “Geographic Information System”

AND “老年”(older adults)

OR "老年人"

AND “照护服务”(care service)

OR “健康服务”(health care)

Web of Science AND PubMed, Elsevier, EBSCO

GIS

OR "Geographic Information System"

Older adult

OR "older adults", "ageing population", "elderly", "geriatric", "older people", "senior"

Care services

OR "care service", "caring service", "health care"