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Table 2 Backward elimination variable selection method to investigate if the elevated blood glucose (pre-diabetes and diabetes) frail population shared common risk factors as other frail population at baseline

From: The prevalence and incidence of frailty in Pre-diabetic and diabetic community-dwelling older population: results from Beijing longitudinal study of aging II (BLSA-II)

 

Prevalence of frailty in pre-diabetic and diabetic subjects (n = 3509)

Prevalence of frailty in subjects with normal blood glucose (n = 6530)

 

Adj. OR

(95%CI)

P value

Adj. OR

(95%CI)

P value

Male vs female

/

/

/

0.66

(0.50,0.87)

0.0031

Currently married vs not

0.60

(0.43,0.85)

0.0041

0.66

(0.50,0.88)

0.0052

Urban vs rural

2.29

(1.30,4.05)

0.0022

3.07

(1.85,5.09)

<.0001

Age group

 55–64

/

/

/

Ref

Ref

Ref

 65–74

/

/

/

1.60

(1.09,2.37)

0.0649

 75–84

/

/

/

2.33

(1.56,3.49)

0.1907

≥85

/

/

/

4.25

(2.04,8.83)

0.0026

Low education vs higher

1.60

(1.18,2.15)

0.0022

/

/

/

Not regular lifestyle vs regular

4.74

(2.02,11.14)

0.0004

/

/

/

Not Regularly drinking milk vs regular

1.61

(1.19,2.18)

0.0020

/

/

/

Less than 6 h/day sleep vs more sleep

1.56

(1.11,2.20)

0.0100

1.48

(1.12,1.96)

0.0053

Number of comorbiditya

      

 0

Ref

Ref

Ref

Ref

Ref

Ref

 1–2

6.33

(2.70,14.80)

0.8612

11.82

(5.49, 25.42)

0.0489

 ≥3

43.56

(18.40,103.16)

<.0001

60.46

(27.72, 131.88)

<.0001

Polypharmacy

≥4 types/day

3.44

(2.57,4.62)

<.0001

2.50

(1.93,3.22)

<.0001

Hours of outdoor activity daily

 None

Ref

Ref

Ref

Ref

Ref

Ref

 0.5–1 h

0.31

(0.17,0.54)

0.3381

0.26

(0.17, 0.41)

0.0660

 2–3 h

0.24

(0.12,0.45)

0.0247

0.229

(0.14, 0.38)

0.0129

≥4 h

0.20

(0.08,0.50)

0.0559

0.190

(0.09,0.40)

0.0291

Doing or helping with house work

 Never

Ref

Ref

Ref

Ref

Ref

Ref

 Occasionally

0.80

(0.52,1.24)

0.6714

0.66

(0.44, 0.97)

0.9925

 Regularly

0.56

(0.37,0.85)

0.0029

0.43

(0.29, 0.63)

<.0001

  1. aNumber of comorbidity include any of the 11 chronic conditions in the FI