. Author manuscript; available in PMC: 2009 Sep 10.

Published in final edited form as: Obesity (Silver Spring). 2007 Nov;15(11):2688–2698. doi: 10.1038/oby.2007.321

Table 3.

Linear relationships of TBV and regional body volumes as proportions of TBV with BMI, WC, and % fat in severely obese participants (BMI ≥ 35 kg/m²)

Sex	Dependent variable	Independent variable	Linear equation	r²	SEE	P
Females	TBV	BMI	TBV = 2.63BMI +7.42	0.60	10.0	0.001^*
		WC	TBV = 0.10WC - 0.96	0.72	8.3	0.001^*
		% fat	TBV = 0.98% fat +67.97	0.19	14.0	0.043^*
	TV/TBV	BMI	TV/TBV = 0.0068BMI +0.3434	0.47	0.0340	0.001^*
		WC	TV/TBV = 0.0003WC +0.3322	0.54	0.0302	0.001^*
		% fat	TV/TBV = 0.0041% fat +0.4277	0.39	0.0348	0.002^*
	AV/TBV	BMI	AV/TBV = -0.00060BMI +0.0980	0.13	0.0075	0.097
		WC	AV/TBV = -0.00003WC +0.1078	0.24	0.0068	0.020^*
		% fat	AV/TBV = -0.00055% fat +0.1000	0.23	0.0068	0.023^*
	LV/TBV	BMI	LV/TBV = -0.0056BMI +0.4845	0.37	0.0342	0.002^*
		WC	LV/TBV = -0.00020WC +0.4864	0.42	0.0309	0.001^*
		% fat	LV/TBV = -0.0033% fat +0.4147	0.32	0.0334	0.006^*
Males	TBV	BMI	TBV = 3.04BMI +5.04	0.71	18.0	0.004^*
		WC	TBV = 0.18WC - 90.30	0.77	16.2	0.002^*
		% fat	TBV = 3.03% fat +13.63	0.54	23.6	0.038^*
	TV/TBV	BMI	TV/TBV = 0.0020BMI +0.5834	0.33	0.0270	0.106
		WC	TV/TBV = 0.00016WC +0.4692	0.62	0.0203	0.012^*
		% fat	TV/TBV = 0.0026% fat +0.5658	0.46	0.0241	0.066
	AV/TBV	BMI	AV/TBV = -0.00048BMI +0.0935	0.28	0.0073	0.147
		WC	AV/TBV = -0.00003WC +0.1127	0.37	0.0068	0.085
		% fat	AV/TBV = -0.00055% fat +0.0964	0.27	0.0077	0.188
	LV/TBV	BMI	LV/TBV = -0.00045BMI +0.2262	0.03	0.0259	0.681
		WC	LV/TBV = -0.000072WC +0.3015	0.21	0.0233	0.214
		% fat	LV/TBV = -0.00092% fat +0.2414	0.11	0.0224	0.428

TBV, total body volume; WC, waist circumference; SEE, standard error of the estimate; TV, trunk volume; AV, arm volume; LV, leg volume.

Significant.