Table 1.

Search strategy in PubMed database.

Number	Search terms	Results
#1	((elderly[MeSH Terms]) OR (aged[MeSH Terms])) OR (older adults[MeSH Terms])	3,423,715
#2	((((((((((((((((((((Domicile[MeSH Terms]) OR (Domiciles[MeSH Terms])) OR (Community[MeSH Terms])) OR (Communities[MeSH Terms])) OR (Community Health Services[MeSH Terms])) OR (Primary health care[MeSH Terms])) OR (Characteristic, Residence[MeSH Terms])) OR (Characteristics, Residence[MeSH Terms])) OR (Residence Characteristic[MeSH Terms])) OR (Residential Selection[MeSH Terms])) OR (Residential Selections[MeSH Terms])) OR (Selection, Residential[MeSH Terms])) OR (Selections, Residential[MeSH Terms])) OR (Neighborhood[MeSH Terms])) OR (Neighborhoods[MeSH Terms])) OR (Place of Birth[MeSH Terms])) OR (Birth Place[MeSH Terms])) OR (Living Arrangements[MeSH Terms])) OR (Arrangement, Living[MeSH Terms])) OR (Arrangements, Living[MeSH Terms])) OR (Living Arrangement[MeSH Terms])	560,689
#3	((((((falls[MeSH Terms]) OR (falling[MeSH Terms])) OR (falls, Accidenta [MeSH Terms])) OR (accidental fall[MeSH Terms])) OR (fall, accidental[MeSH Terms])) OR (Slip and Fall[MeSH Terms])) OR (Fall and Slip[MeSH Terms])	27,698
#4	(((risk factors[MeSH Terms]) OR (risk factor[MeSH Terms])) OR (relevant factors[MeSH Terms])) OR (influencing factor[MeSH Terms])	940,556
#5	(((#1) AND (#2)) AND (#3)) AND (#4)	711