The significance of different obesity parameters in obese participants with insulin resistance

Background: Studies found a link between visceral obesity and insulin resistance (IR). Numerous attempts made to discover a link between fat lipotoxicity and IR by measuring waist circumference (WC) or body mass index (BMI). This study investigates the relationship between body adiposity index [BAI], a body shape index [ABSI], BMI, waist-to-hip ratio [WHR], TGI-WC = Triglyceride glucose index-× WC, and TGI-BMI = Triglyceride glucose index-BMI. Homeostatic model assessment of IR (HOMA-IR) is utilized to examine the significance of those indices in the target population with obesity-linked IR in Iraq. Objective: The aim is to identify the most relevant obesity index by examining the relationship between multiple obesity indices and IR in obese healthy individuals. Design and Methods: 100 obese and nonobese patients' height, weight, and hip circumference were taken. Triglycerides (TGs), glycated hemoglobin (HbA1c), serum insulin, and fasting plasma glucose were obtained to calculate HOMA-IR, TGI-WC, and TGI-BMI. Results: Healthy adults 18-50 years were divided (obese and not-obese), clinical features were averaged, and standard errors of the mean calculated. Results for the first obese group were blood pressure [BP] = 114 ± 2/75 ± 9, HbA1c=5.76 ± 0.09, TG = 175.26 ± 3.66, fasting blood glucose [FBG] = 111.84 ± 1.57, WC = 106.62 ± 1.68, BMI = 32.02 ± 0.69, while those for the second group were BP = 111 ± 8/70 ± 6, HbA1c = 4.41 ± 0.06, TG = 96.36 ± 2.02, FBG = 82.40 ± 1.48, WC = 83.76 ± 0.85, and BMI = 22.84 ± 0.22. The relationships between obesity indices were analyzed with HOMA-IR being judged to be IR when it acquired a score value of ≥ 2. The Pearson's correlation coefficient® used to represent was WHR: r = 0.58, P = 0.0001, ABSI: r = 0.44, P = 0.04, BAI: r = 0.50, P = 0.02, TGI-WC: r = 0.89, P = 0.0001, and TGI-BMI: r = 0.74, P = 0.74. Conclusion: All of the obesity and lipid-related indices investigated were positively correlated with IR. The use of TGI-WC is recommended since it is straightforward to calculate using accessible laboratory tests; it showed the highest (Pearson's) coefficient (r = 0.89; P = 0.0001).