The difference of HDL cholesterol mean between A. sativum and 0.9% PS was 4.325 mg/dL with 95% CI varying from -6.667 to 15.317 mg/dL. The mean difference between the cilostazol and 0.9% PS groups was 0.570 mg/dL, with 95% CI of -10.422 to 11.562 mg/dL. On the other hand, between the cilostazol and A. sativum groups, the mean difference was -3.755 mg/dL with 95% CI of 7.237 to -14.747 mg/dL. From two-way ANOVA, we obtained P=0.0199; however, in the Tukey test, there was no significant difference between the groups.