Comparison of Abdominal Visceral Adipose Tissue Area Measured by Computed Tomography with That Estimated by Bioelectrical Impedance Analysis Method in Korean Subjects

• Published in: Nutrients Vol. 7; no. 12; pp. 10513 - 10524
• Main Authors: Lee, Dong-Hwa, Park, Kyeong, Ahn, Soyeon, Ku, Eu, Jung, Kyong, Kim, Yoon, Kim, Kyoung, Moon, Jae, Choi, Sung, Park, Kyong, Jang, Hak, Lim, Soo
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 16.12.2015; MDPI
• Subjects: adipose tissue; Adiposity; Adult; Age; Aged; Aged, 80 and over; Alanine Transaminase - blood; Asian Continental Ancestry Group; Aspartate Aminotransferases - blood; bioelectrical impedance; Body Composition; Body Mass Index; Cholesterol, HDL - blood; Cholesterol, LDL - blood; computed tomography; Creatinine - blood; Cross-Sectional Studies; Electric Impedance; Female; Humans; Intra-Abdominal Fat; Linear Models; Male; men; Middle Aged; Republic of Korea; Tomography; Tomography, X-Ray Computed; visceral fat; women; Young Adult; Republic of Korea; computed tomography; Korean; visceral fat area; bioelectrical impedance
• ISSN: 2072-6643; 2072-6643
• DOI: 10.3390/nu7125548

We evaluated the concordance between visceral fat area (VFA) estimated by bioelectrical impedance analysis (BIA) or computed tomography (CT) in Korean subjects with a wide range in age and body mass index (BMI). In 1006 individuals (mean age 55.2 ± 11.8 (19–87) years, mean BMI 26.0 ± 3.5 (17–46) kg/m2, 48.9% men), VFA quantified by CT was compared with VFA using multifrequency BIA machines within 15 days. Concordance rates were compared by age or BMI using correlation analysis, Bland-Altman plots, and intraclass correlation coefficient (ICC). Using BIA data, we established a regression formula to reflect CT-VFA. The mean VFAs by CT and BIA were 131.9 ± 57.3 cm2 and 110.5 ± 33.9 cm2, respectively (r = 0.605, p < 0.001). The mean difference was 21.4 ± 45.6 cm2, tending to increase with BMI. In women with BMI <25 kg/m2 or age <50 years, the VFAs by BIA were similar to those by CT (ICC = 0.496 in BMI <25 kg/m2 and ICC = 0.638 in age <50 years). However, the difference was greater in men with BMI ≥25 kg/m2 or age ≥50 years. Applying our formula, the difference between estimations decreased to 0.2 ± 38.2cm2. VFA estimated by BIA correlated well with that by CT, but a more accurate formula is needed to match CT data, particularly in older men or subjects with a high BMI.