Waist circumference and body mass index accurately identified the presence of hepatic steatosis with ROC areas under the curve of 0.94 and 0.91, respectively, outperforming other surrogate markers.
Cross-Sectional (n=99)
Single-blind
No
Are simple surrogate markers like waist circumference and BMI as accurate as WHR, MOAD, and VAI in estimating visceral adiposity compared to ultrasound in young adults?
Waist circumference and BMI are the simplest and most accurate surrogate markers of visceral adiposity and hepatic steatosis in young adults, outperforming WHR, MOAD, and VAI.
Estimación del efecto: AUC 0.94 (95% CI 0.88-0.99)
valor p: p=<0.001
Surrogate indexes of visceral adiposity, a major risk factor for metabolic and cardiovascular disorders, are routinely used in clinical practice because objective measurements of visceral adiposity are expensive, may involve exposure to radiation, and their availability is limited. We compared several surrogate indexes of visceral adiposity with ultrasound assessment of subcutaneous and visceral adipose tissue depots in 99 young Caucasian adults, including 20 women without androgen excess, 53 women with polycystic ovary syndrome, and 26 men. Obesity was present in 7, 21, and 7 subjects, respectively. We obtained body mass index (BMI), waist circumference (WC), waist-hip ratio (WHR), model of adipose distribution (MOAD), visceral adiposity index (VAI), and ultrasound measurements of subcutaneous and visceral adipose tissue depots and hepatic steatosis. WC and BMI showed the strongest correlations with ultrasound measurements of visceral adiposity. Only WHR correlated with sex hormones. Linear stepwise regression models including VAI were only slightly stronger than models including BMI or WC in explaining the variability in the insulin sensitivity index (yet BMI and WC had higher individual standardized coefficients of regression), and these models were superior to those including WHR and MOAD. WC showed 0.94 (95% confidence interval 0.88-0.99) and BMI showed 0.91 (0.85-0.98) probability of identifying the presence of hepatic steatosis according to receiver operating characteristic curve analysis. In conclusion, WC and BMI not only the simplest to obtain, but are also the most accurate surrogate markers of visceral adiposity in young adults, and are good indicators of insulin resistance and powerful predictors of the presence of hepatic steatosis.
Borruel et al. (Fri,) conducted a cross-sectional in Visceral adiposity and hepatic steatosis (n=99). Waist circumference and Body Mass Index vs. Waist-hip ratio, model of adipose distribution, and visceral adiposity index was evaluated on Diagnostic accuracy for identifying the presence of hepatic steatosis (Area Under the ROC Curve) (AUC 0.94, 95% CI 0.88-0.99, p=<0.001). Waist circumference and body mass index accurately identified the presence of hepatic steatosis with ROC areas under the curve of 0.94 and 0.91, respectively, outperforming other surrogate markers.
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