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. 2017 Aug 23;12(8):e0183642. doi: 10.1371/journal.pone.0183642

Table 2. Linear regression analysis of association of physical activity with quality of life in patients with chronic kidney disease.

	2-minute step^*		Handgrip strength, kgf		30-second chair-stand
	Univariate β(95%Cl)	multivariate β(95%Cl)	Univariate β(95%Cl)	multivariate β(95%Cl)	Univariate β(95%Cl)	multivariate β(95%Cl)
Total scores	7.08(-0.65,14.81)	-0.39(-9.33,8.56)	0.17(0.06,0.27)^a	0.13(0.01,0.24)^b	0.30(0.04,0.55)^b	0.04(-0.05,0.13)
Physical domain	2.21(-0.03,4.46)	0.68(-1.89,3.24)	0.05(0.02,0.08)^a	0.05(0.02–0.08)^a	0.08(0.01,0.15)^b	0.04(-0.05,0.13)
Psychological domain	1.76(-0.80,4.32)	0.56(-2.60,3.72)	0.03(-0.00,0.06)	0.04(-0.02,0.09)	0.13(0.04,0.21)^a	0.14(0.05,0.24)^a
Social domain	1.83(-1.17,4.85)	0.51(-2.84,3.86)	0.05(0.01,0.08)^b	0.04(-0.03,0.09)	0.11(0.01,0.21)^b	0.07(-0.04,0.18)
Environmental domain	1.26(-0.87,3.40)	-0.01(-2.43,2.41)	0.04(0.01,0.06)^b	0.04(-0.02,0.10)	-0.02(-0.09,0.05)	-0.05(-0.13,0.03)

Multivariate linear regression analysis was adjusted for all variables of p-value<0.05 plus age, sex, and serum creatinine level

*Log-formed 2-minute step

^aP<0.01

^bP<0.05