Table 4. Previous studies of VAT volume.

Author	Year	Image acquisition	Level	Variables	Parameters of fat
Rosenquist et al.[14]	2013	25 contiguous 5-mm thickness CT	above S1	VAT and SAT	Volume and HU
Britton et al.[18]	2013	25 contiguous 5-mm thickness CT	above S1	VAT and SAT	Volume
Alvey et al.[15]	2014	25 contiguous 5-mm thickness CT	above S1	VAT and SAT	Volume and HU
Tahara et al.[20]	2015	11 contiguous 4-mm thickness CT	umbilicus	VAT and SAT	Area, HU, and SUV
Rosenquist et al.[19]	2015	25 contiguous 5-mm thickness CT	above S1	VAT and SAT	Volume and HU

VAT, visceral adipose tissue; CT, computed tomography; SAT, subcutaneous adipose tissue; HU, hounsfield unit; SUV, standardized uptake value.