Table 3: Prediction models for IA-AT and SCA-AT in the validation study.


Model1 Constant (%) RMSE7 value for model change
Weight
(kg)
Sex
Age (days)
US SC-abdo depth (cm)4,5US-visceral depth (cm)4

IA-AT (cm3)21−1.4 1561.30.07
2−1.5 1659.80.1
3−0.7 −0.8 ± 3.2 2260.00.2
423.7−12.9 ± 8.0−0.3 ± 2.9 4353.40.1
520.9−15.0 ± 6.7 6237.40.02

SCA-AT (cm3)31−42.6 3638.20.003
2−48.6 4437.40.01
3−49.4 −0.3 ± 1.24434.80.02
466.7−47.4 ± 0.03 6520.20.1

1Covariables were added sequentially to the prediction models to demonstrate their incremental benefits.
2IA-AT: internal-abdominal adipose tissue volume by MRI.
3SCA-AT: Subcutaneous abdominal adipose tissue volume by MRI.
4US: Ultrasound.
5SC-abdo: subcutaneous-abdominal.
6B: regression coefficient (±respective standard error).
7RMSE: root mean square error.
8 : coefficient of determination.