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

Table 4 Physical and cognitive functions to explain the mental component of QOL

Independent variables	MCS
	Step 1		Step 2		Step 3
	β	p	β	p	β	p
Age	0.05	0.655	0.11	0.249	0.11	0.256
Gender	0.25	0.028	0.34	0.007	0.34	0.008
Education level	0.13	0.227	0.18	0.067	0.18	0.072
Physical function Grip strength			0.24	0.073	0.24	0.083
Mobility (TUG)			− 0.36	0.002	− 0.36	0.002
Balance (OLS)			0.05	0.607	0.05	0.624
Cognitive function (MoCA)					0.03	0.976
F	2.21 (p = 0.094)		5.12 (p < 0.001)		4.33 (p < 0.001)
R²	0.08		0.29		0.29
Adj R²	0.04		0.24		0.23
△R²			0.21		0.00

TUG = Timed up and go, OLS = One leg standing, K-MoCA = Korean version of Montreal cognitive assessment, QOL = quality of life

ISSN: 2050-7283