Objective: To study the insulin resistance and beta cell function in newly-diagnosed type 2 diabetic patients. Methods: Cross-sectional descriptive study, convenience sampling, and divided into two groups: diabetic and control groups. Bott) the two groups were performed the tests in the form at the time diagnosed. Result: A total of 383 subjects agreed to participate in the study and were divided into two groups: 281 newly diagnosed type 2 diabetes patients including 146 women and 135 men, 102 had with control group including 63 females and 39 men in the study. Age average 53.3 + or - 12.3. Insulin and C-peptide levels in diabetic group were higher than control group with statistical significance (p 0.001). Mean insulin level was 10.94 + or - 7.13 uU/mL and C-peptide level was 2.85 + or - 1.38 ng/mL. At the time of newly diagnosed type 2 diabetes, insulin resistance increased 59.65 percent and 98.7 percent
beta-cell function reduces 51.91 percent and 57.52 percent for calculating insulin and C-peptid. Conclusion: In newly diagnosed type 2 diabetic patients had insulin and C-peptid levels that were higher than control group with statistical significance (p 0.001), insulin resistance increased 59.65 percent and 98.7 percent
beta cell function reduced 51.91 percent and 57.52 percent for calculating insulin and C-peptid.