Cross-cultural adaptation and psychometric evaluation of the social frailty scale in Iranian older adults

BMC Geriatrics

Table 2 Principal component analysis and scores of the SFS-8 in older adults

No.	Items	Factor Loading*	Communality**	Persian version of the SFS-8
No.	Items	Factor Loading*	Communality**	Yes N (%)	No N (%)	Mean (± SD)
1	Do you live alone?	Was removed
2	Do you go out less frequently compared with last year?	0.595	0.354	111 (44.4)	139 (55.6)	0.444 (± 0.498)
3	Do you occasionally meet your friends?	0.620	0.384	70 (28.0)	180 (72.0)	0.280 (± 0.450)
4	Do you talk with someone every day?	0.759	0.576	236 (94.4)	14 (5.6)	0.056 (± 0.230)
5	Do you turn to family or friends for advice?	0.742	0.550	206 (82.4)	44 (17.6)	0.176 (± 0.382)
6	Do you spend at least one meal in a day with another person (such as spouse, child, or friends)?	0.881	0.775	220 (88.0)	30 (12.0)	0.120 (± 0.326)
7	Do you have someone to confide in?	0.732	0.536	208 (83.2)	42 (16.8)	0.168 (± 0.375)
8	Are you facing a limitation to use your financial resources to pay for the medical services that need?	Was removed
Eigenvalue (6-item)				3.176
The variance explained (%)				52.9
The total score of Persian version of the social frailty scale***				1.244 (± 1.345)

* The minimum factor loading was 0.5 (lower factor loadings are not included)
** The minimum commonality was set at 0.3 (lower commonalities are not included)
*** The total score was calculated in the range of 0 to 6. Therefore, for each sample, the answer “yes” for question 1 and “no” for questions 2 to 6 were considered one score and the other answers as zero. The total score was then calculated. A higher score means greater vulnerability

ISSN: 1471-2318