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Table 2 Correlation between physical function, cognitive function and quality of life

From: Physical and cognitive function to explain the quality of life among older adults with cognitive impairment: exploring cognitive function as a mediator

Variables

Mean (SD)

Score range

Physical function

Cognitive function (K-MoCA)

QOL-

PCS

Grip strength

Mobility (TUG)

Balance (OLS)

Physical function

       

Grip strength

20.53 (5.72)

8.75 ~ 36.25

1

    

Mobility (TUG)

11.98 (5.61)

4.95 ~ 37.78

− 0.28*

1

   

Balance (OLS)

4.04 (4.28)

0 ~ 19.66

0.26*

− 0.18

1

  

Cognitive function¶

16.39 (6.50)

1 ~ 29

0.21

− 0.23*

0.33**

1

 

QOL-PCS†

44.24 (9.70)

21.66 ~ 61.25

0.28*

− 0.32**

0.16

− 0.13

1

QOL-MCS†

49.48 (12.29)

16.03 ~ 66.57

0.16

− 0.42**

0.09

0.18

0.20

  1. *p < 0.05, **p < 0.01;
  2. TUG = Timed up and go, OLS = One leg standing, K-MoCA = Korean version of Montreal cognitive assessment, QOL-PCS = Physical component summary of the quality of life, QOL-MCS = Mental component summary of the quality of life
  3. ¶Score scale 0–30 (best score 30)
  4. †Score scale 0-100 (best score 100, sum of QOL-PCS and QOL-MCS)
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BMC Psychology

ISSN: 2050-7283

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