Pearson correlation for 2 constant (age and duration of T1DM) and 3 variable post operative parameters (insulin requirements, HBA1c change and BMI change) combination. Significant moderate correlation between any two parameters is depicted in grey color (0.-0.39 = weak, 0.4-0.59 moderate, 0.6-0.79 = strong, 0.8-1.0 = very strong, Evans guide 1996). The gene discussed is INS; the disease is type 1 diabetes mellitus.