* Research objectives: Evaluate and compare the clinical and paraclinical characteristics, complications, as well as the changes in beta cell function and HbA1C levels between two patient groups over a one-year follow-up period.
+Research design: This is a prospective cohort study, monitoring patients at 3, 6, 9, and 12 months.
* Study Population and Sample Size: The study is planned to be conducted on 296 Vietnamese patients (accounting for a 20% dropout rate) who are being examined at the University of Medicine and Pharmacy Hospital in Ho Chi Minh City.
* Key Evaluation Indicators: The function of beta cells and insulin resistance status are measured through the indices of HOMA-B, HOMA-IR, fasting C-peptide levels, and HbA1C levels.
* Time and location: The study will be conducted from February 2025 to February 2028 at the Endocrinology Clinic, University Medical Center Ho Chi Minh City.