Figure 2

Domain scores over time for AD groups based on time in study. Scores are shown for patients only participating at study entry (N = 38) and 6-month completers (N = 39) (Subfigure A), for 12-month completers (N = 93) (B), for 24-month completers (N = 93) (C) and for 36-month completers (N = 158) (D). Domain scores represent z-scores based on the study entry session for all patients. In subfigure A, study entry patients are shown to the left with no lines.