Figure 4
From: Frailty, fitness and late-life mortality in relation to chronological and biological age

Mean proportion of deficits at any given age for subjects with no cognitive impairment. Solid circles represent the proportion of the deficits averaged across all subjects at age CA: In (q) = - 4.23 + 0.03 CA. Correlation coefficient, r = 0.91, p < 0.0001