Figure 5.

Left panels: trajectories of physical (Barthel) and cognitive (Blessed Information-Memory-Concentration Test) functional declines fitted to the data. The right panels depict the age of onset of functional (Barthel score < 80) and cognitive declines (Blessed score < 27) in the different centenarian age groups by gender. The trajectories were computed using the inverse logistic transformation as explained in methods, and for each age group, they are truncated by the maximum age for their defined age ranges (eg, 99 years for nonagenarians, 104 for centenarians).