A. Mean FSSG score in relation to the metabolic syndrome (Mets), serum adiponectin levels (serum adiponectin levels; cutoff value 6.31 μg/mL for men, 8.62 μg/mL for women, median value, respectively), and serum interleukin-6 (IL-6) (cutoff value 2.02 pg/mL for men, 2.65 pg/mL for women, median value, respectively). B. Comparison of prevalence of GERD symptoms (FSSG score ≥ 8) and FSSG score between T2DM without and with Mets, and with low and high levels of serum adiponectin. Data are mean ± SEM, and compared by the χ2 and Mann-Whitney U-test in experiments of two groups. All analyses were performed with the JMP Statistical Discovery Software 9.0 (SAS Institute, Cary, NC).