RESULTS
A total of 60 patients were initially included in this study
and they were randomly assigned into a group of metformin
and a group of placebo, but later in the study, 11 patients
in the group of metformin and 12 patients in the group
of placebo were dropped out of the study and ultimately
19 cases in the group of metformin and 18 cases in the group
of placebo continued the study to the end [Figure 1].
Ten patients in the group of metformin and seven patients
in the group of placebo were male. Statistical analysis
using a Chi-square test showed no statistically significant