INS and Insulin resistance: Nevertheless, fasting insulin and insulin resistance/sensitivity parameters such as homoeostasis model assessment (HOMA-IR) and quantitative insulin sensitivity check index (QUICKI) remained unchanged at both time-points, while C-peptide increased significantly by 39% (Δ: 0.69 ng/mL; p < 0.00001) and 51% (Δ: 0.91 ng/mL; p < 0.00001) from baseline at 1st and 2nd follow-ups, respectively (Table 1).