4.1.2 Frequency of cognitive deficits by group The graph below (Figure 2.) shows the percentage of participants in each cancer group scoring at least two SD below the mean score on at least one test and at least three tests at each timepoint compared to the proportions expected in a normal population due to chance alone.35 Perceptuo-motor (42% scored 2SD below the mean), memory (19% at 2SD) and executive function (16% at 2SD) were the cognitive domains most frequently affected.
