Figure 1.
Schematic of participant selection processes in each included study.
Table 1.
Numbers of participants with complete data for each variable.
Table 2.
Characteristics of the study participants (n = 4683).
Table 3.
Descriptive statistics for physical performance measures according to age group (men).
Table 4.
Descriptive statistics for physical performance measures according to age group (women).
Figure 2.
Univariate linear regression lines between age and physical performance (A–F) in men and women.
Univariate linear regression analysis showed significant associations between age and all physical performance measures in both sexes (all P<0.001). A = hand-grip strength, B = one-legged balance with eyes open, C = usual gait speed, D = usual gait step length, E = maximum gait speed, and F = maximum gait step length.
Table 5.
Quintiles of physical performance measures according to age group (men).
Table 6.
Quintiles of physical performance measures according to age group (women).