Table 4.

Regression analysis for frailty index.

Variables	FI R2: 0.16
	Coeff.	SE	Sig.	Partial contribution to R2 (%)
Age	0.005	0.002	0.01	44.93
MT	−0.005	0.002	0.01	55.07
Gender	−0.031	0.032	0.333	–
BMI	0.001	0.003	0.753	–

BMI, body mass index; FI, Frailty index; MT, muscle thickness (vastus intermedius plus rectus femoris).