Differences in patient characteristics and comparisons
between groups of continuous cannabis use and
early determination were detected by the chi-square test.
Changes in the degree of cancer-related symptoms or oncology
treatment side effects and possible side effects of cannabis
use in the patients with prolonged use were also evaluated
by the chi-square test. The differences in the symptom sums
between patient characteristics subgroups according to the
different interviews were calculated with Mann-Whitney
nonparametric tests in the condition of two subgroups or
analysis of variance (Kruskal-Wallis) test for three or more
subgroups, with Bonferroni post hoc multiple comparisons.
Wilcoxon two related simple nonparametric test was used to
test the change in symptomsumbetween the two time points
of the interviews. Interactions between subgroups of patient
characteristic and the change of the symptoms sum by time
were indicated by the repeatedmeasures analysis.