Table 2 Analysis of influencing factors of frailty (N = 695)

Gender

 Male

1.000

 Female

0.609

0.165

13.577

 < 0.001

1.389 (1.330, 2.540)

Age

 70–74

1.000

 75–79

0.063

0.165

0.147

0.701

1.065 (0.771, 1.473)

 80–84

0.420

0.228

3.409

0.065

1.522 (0.974, 2.377)

≥ 85

0.541

0.388

1.950

0.163

1.718 (0.804, 3.673)

Marital status

 Currently married

1.000

 Others

0.230

0.169

1.835

0.176

1.259 (0.902, 1.754)

Education

 Primary school and below

1.000

 Middle school

-0.253

0.205

1.525

0.217

0.776 (0.519, 1.161)

 High school and above

-0.136

0.383

0.126

0.723

0.873 (0.412, 1.848)

Number of chronic diseases

 0

1.000

 1

0.284

0.250

1.290

0.256

1.328 (0.814, 2.166)

≥ 2

0.730

0.241

9.156

0.002

2.075 (1.293, 3.327)

Sleep quality

0.035

0.017

4.308

0.038

1.036 (1.002, 1.071)