Figure 2.

Retrospective analysis of 96 outpatients complaining of MCI symptoms, 61 of which received daily 3 to 24mg of a fast-release melatonin preparation p.o. at bedtime for 15 to 60 months. For details see Legend to Figure 1.Initial and final neuropsychological evaluation of trail A and trail B tasks, and Rey´s verbal test are depicted. Shownare the means ± SD. P values denote the differences between groups of changes in neuropsychological evaluationbefore and after the follow-up period (Mann-Whitney U test). Z values are depicted in Table 2.