Analysis All data are presented as mean ± standard deviation (SD). Significant differences in general characteristics were determined by Chi-square and Student's t-test. Change from baseline HbA1c, FBS, PPBG, and blood lipids was analyzed using an analysis of variance (ANOVA) model with baseline characteristics as variates. SPSS for Windows (Version 14; SPSS Inc., Chicago, IL) was used for data analyses and P values < 0.05 were considered statistically significant.