Table 1.

Experts’ basic information.

Number of experts	Gender	Educational degree	Major	Professional title	Working years
A	Female	Master	Geriatric nursing	Senior nurse	22
B	Female	Master	Clinical nursing	Senior nurse	23
C	Female	Master	Clinical nursing	Co-chief nurse	22
D	Female	PhD	Geriatric nursing	Assistant professor	5
E	Female	PhD	Geriatric nursing	Professor	35
H	Female	PhD	Social medicine	Associate professor	8
F	Male	PhD	Nutrition	Professor	30
G	Male	PhD	Nutrition	Associate professor	22