Table 4 Results of multiple stepwise linear regression analysis on influencing factors of social frailty of older adults (n = 295)

Constant value

-2.409

0.522

-4.614

***

Age

0.230

0.114

0.088

2.018

*

Educational level

-0.176

0.072

-0.109

-2.462

*

Habitation

 Living with spouse only

-0.581

0.267

-0.187

-2.176

*

 Living with children and spouse

-0.467

0.253

-0.133

-1.849

0.066

 Others (e.g., pension institutions)

-0.042

0.429

-0.005

-0.097

0.923

Personal income

0.218

0.063

0.156

3.459

***

Total score of loneliness

0.098

0.008

0.568

12.830

***