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Table 2 Association of BMI and lower extremity performance with life-space restriction (cross-sectional analysis)

From: The effect of body mass index, lower extremity performance, and use of a private car on incident life-space restriction: a two-year follow-up study

 

Model 1

Model 2

Model 3a

Model 4a

Model 5a

PR

95% CI

PR

95% CI

PR

95% CI

PR

95% CI

PR

95% CI

Single association

 BMI

   < 23

1.36

(0.93, 1.98)

  

1.03

(0.74, 1.44)

    

  23–25

1.00

   

1.00

     

  25–30

1.21

(0.86, 1.69)

  

1.01

(0.75, 1.36)

    

   ≥ 30

1.68

(1.16, 2.44)

  

1.24

(0.89, 1.73)

    

 Lower extremity performance

  Intact (SPPB 10–12)

  

1.00

 

1.00

     

  Impaired (SPPB 0–9)

  

3.31

(2.62, 4.18)

2.58

(2.05, 3.25)

    

Combined association

 Intact LEP with BMI

   < 23

      

1.15

(0.60, 2.23)

1.09

(0.56, 2.11)

  23–25

      

1.00

 

1.00

 

  25–30

      

1.18

(0.66, 2.11)

1.19

(0.67, 2.12)

   ≥ 30

      

1.48

(0.77, 2.82)

1.43

(0.76, 2.71)

 Impaired LEP with BMI

   < 23

      

3.03

(1.73, 5.31)

2.71

(1.55, 4.74)

  23–25

      

3.14

(1.74, 5.67)

2.73

(1.53, 4.89)

  25–30

      

2.89

(1.68, 4.97)

2.66

(1.56, 4.53)

   ≥ 30

      

3.55

(2.02, 6.27)

3.31

(1.89, 5.81)

 Use of a private car

  Car driver

        

1.00

 

  Private car passenger

        

2.07

(1.39, 3.07)

  No use a private car

        

2.15

(1.41, 3.28)

  1. n = 823
  2. PR prevalence ratio, CI confidence interval, BMI body mass index, LEP lower extremity performance, SPPB short physical performance battery
  3. aAdjusting for sex, age, chronic diseases, and education