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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: Exp Gerontol. 2015 Jul 21;70:71–77. doi: 10.1016/j.exger.2015.07.009

Figure 2. Person-specific paths of annual rate of change in global motor scores.

Figure 2

The figure is organized according to the age of the participant at each evaluation; the length of each line relative to the x-axis indicates the total years of observation for that individual. For visual clarity, the line segments shown in this figure correspond to a 25% random sample of the group. Each line segment is a person-specific estimated path obtained from a linear random-effects model which included terms for time in study; age, sex, and education; and their interactions with time. The line segment for each individual begins at the baseline age and continues until the age at the last motor assessment. The Y axis shows the scale for global motor scores and the X axis shows age.