Statistical analysis
memory disorders
The data were analyzed using SPSS version 20.0 (IBM Corporation, Armonk, NY, USA) through descriptive statistics (Mean, SD, frequency and percent) and inferential statistics (including independent t-test, paired t-test, Chi-square, Fisher exact test). To investigate the normality of the data, Kolmogorov–Smirnov test was used and normal distribution of the data was obtained. However concerning the gender, marital status, level of education and memory disorders difference between MS with regard to treatment adherence drugs and also due to the small size of the groups, the distribution of data was non normal and therefore nonparametric tests (Wilcoxon, Mann–Whitney and Kruskal–Wallis terst) were used.