Exploring the Link Between BMI and Blood Sugar Regulation in Type 2 Diabetes Mellitus
Introduction: Diabetes is a chronic condition caused by either an absolute lack of insulin or a relative lack of insulin due to impaired insulin secretion and action. Insulin resistance and glucose intolerance results in hyperglycemia and alterations in lipid and protein metabolism . In the long term, these metabolic abnormalities contribute to complications such as cardiovascular disease, retinopathy, nephropathy, and neuropathy Diabetes mellitus (DM) is very common in all age groups, worldwide. The number of people with diabetes worldwide was estimated as 415 million in 2015, and is expected to rise to 642 million by 2040. Materials and Methods: The present cross-sectional survey was carried out within a 7-month period in Hospital. The data were collected at public hospital that treated patients within the vicinity for various diseases including type 2 diabetes mellitus. Patients attended the clinic at appointed times determined by the healthcare officers for continuous monitoring and consultation of their disease. Data such as age, sex, ethnic, BMI, duration of diabetes mellitus, comorbidities and type of drug used were collected from the patients' medical records. In the present study, all the patients were interviewed using standard self-reporting questionnaires. Results: In this study of 170 patients with Type 2 Diabetes Mellitus (T2DM), we observed a significant association between Body Mass Index (BMI) and glycemic control. The mean BMI was 28.7 ± 4.9 kg/m², and the overall mean HbA1c was 8.2 ± 1.6%. Patients with higher BMI had significantly higher HbA1c levels (p=0.035) and fasting blood glucose levels (p=0.048). The proportion of patients achieving good glycemic control (HbA1c ≤7%) was 40.0% in underweight, 45.0% in normal weight, 33.8% in overweight, and only 25.0% in obese patients (p=0.012). Pearson correlation analysis showed a moderate positive correlation between BMI and HbA1c (r=0.28, p=0.001).
Conclusion: This study is intended as a resource that consolidates and reports the recent evidence base on glycemic control in individuals with T2D reported by BMI in real-life settings in selected countries. Most of the identified studies demonstrated that rates of achieving glycemic control in individuals with T2D were lower with higher levels of BMI, or that the risk of not achieving glycemic control increased with higher BMI.