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Table 3 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 one-year follow-up

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)

 

Incidence of frailty in pre-diabetes and diabetes subjects (n = 2176)

Incidence of frailty in subjects with normal blood glucose (n = 4117)

 

Adj. RR (95%CI)

P value*

Adj. RR (95%CI)

P value*

Male vs female

0.67 (0.52,0.86)

0.0017

/

/

Urban vs rural

2.28 (1.32, 3.91)

0.0030

/

/

Age group

 55–64

Ref

Ref

Ref

Ref

 65–74

1.70 (1.12, 2.58)

0.0125

2.01 (1.37,2.93)

0.0003

 75–84

2.62 (1.71, 4.03)

<.0001

3.49 (2.38,5.12)

<.0001

≥85

4.88 (2.53, 9.42)

<.0001

7.72 (4.61,12.94)

<.0001

Regularly receiving medical consultation after baseline vs not receiving

0.79 (0.62,1.00)

0.0463

0.72 (0.58, 0.90)

0.0041

Regular anti diabetic treatment vs irregular

1.16 (0.91, 1.48)

0.2240

/

/

Number of comorbiditya

 0

Ref

Ref

Ref

Ref

 1–2

1.19 (0.83,1.70)

0.3386

2.13 (1.53, 2.98)

<.0001

 ≥3

3.02 (2.07,4.39)

<.0001

3.43 (2.30, 5.12)

<.0001

Polypharmacy

≥4 types/day

/

/

1.44 (1.11, 1.86)

0.0062

Doing or helping with house work

 Never

Ref

Ref

/

/

 Occasionally

0.87 (0.61,1.24)

0.4344

/

/

 Regularly

0.67 (0.47,0.95)

0.0247

/

/

Waist circumference high vs normal

1.37 (0.99,1.89)

0.0549

/

/

Self-awareness of blood glucose level

/

/

0.72 (0.57, 0.90)

0.0036

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