Role of the duodenum in regulation of plasma ghrelin levels and body mass index after subtotal gastrectomy

Figure 1 Alterations of ghrelin level during 360 d after operation of the two study groups and the control group. POD: Postoperative day.

Figure 2 Alterations of ghrelin levels of two study groups at the early (A) and later (B) stage. ^aP < 0.05, ^bP < 0.01.

Figure 3 Linear regression correlations. (A) Detected between decrease in ghrelin level and BMI in Billroth I group patients 1 yr after operation. (B) Detected between decrease in ghrelin level and BMI in Billroth II group patients 1 yr after operation. R₁² = 0.297, P < 0.007. R₂² = 0.559, P < 0.001.