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

Table 3 Physical and cognitive functions to explain the physical component of QOL

Independent variables	PCS
	Step 1		Step 2		Step 3
	β	p	β	p	β	p
Age	0.05	0.650	0.11	0.331	0.15	0.146
Gender	0.11	0.330	0.07	0.580	0.02	0.851
Education level	0.08	0.448	0.07	0.595	0.00	0.952
Physical function Grip strength			0.13	0.357	0.23	0.101
Mobility (TUG)			− 0.27	0.024	− 0.31	0.007
Balance (OLS)			0.09	0.434	0.16	0.145
Cognitive function (K-MoCA)					0.34	0.004
F	0.53 (p = 0.658)		2.25 (p = 0.047)		3.37 (p = 0.004)
R²	0.02		0.15		0.25
Adj R²	0.02		0.08		0.17
△R²	0.02		0.13		0.09

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

ISSN: 2050-7283