Figure 3.

Changes of nutritional status during the follow-up period. (a) from preoperatively to the 6th month postoperatively, (b) from preoperatively to the 4th week postoperatively. Differences between two study groups and two study time points were analyzed using split-plot analysis of variance and Bonferroni adjustment for multiple comparisons. Data are shown as mean ± standard error. a, p < 0.05 (vs. control); b, p < 0.05 (vs. preoperatively); c, p < 0.05 (vs. the fourth week postoperatively); BW/UBW, body weight at each study time points per usual body weight.