Table 1.

Spearman correlation coefficients of main variables among the participants in Shandong, China, 2019 (N=3243)

Variable	M±SD/M(P25, P75)	1	2	3	4
1. Physical frailty	1.511±1.071	1
2. Physical disability	16.994±4.36	0.283*	1
3. Physical activity	2772 (693,4158)	−0.378*	−0.194*	1
4.HRQoL	0.896±0.161	−0.429*	−0.378*	0.258*	1

M±SD: mean±SD; M (P25, P75): median (quartile₁, quartile₃).

1,2,4 follow normal distribution and are described as M±SD.

3 does not follow normal distribution and is described as M (P₂₅, P₇₅).

*p<0.001.

HRQoL, health-related quality of life.