Table 5.

Multiple linear regression analyses with lnTNF-α as the dependent variable

Ethnicity	Independent variable	Β	se (Β)	P	Partial R2 (%)
Overall	Waist circumference	0.007	0.0007	<0.0001	5.8
	HDL	−0.006	0.0007	<0.0001	4.3
	Triglycerides	0.0006	0.00007	<0.0001	3.8
Non-Hispanic white	Waist circumference	0.008	0.001	<0.0001	7.7
	HDL	−0.008	0.001	<0.0001	8.0
	Triglycerides	0.0006	0.0001	<0.0001	5.4
African-American	Waist circumference	0.006	0.001	<0.0001	4.0
	HDL	−0.004	0.001	0.002	1.9
	Triglycerides	0.001	0.0003	<0.0001	3.8
Hispanic	Waist circumference	0.008	0.001	<0.0001	7.1
	HDL	−0.005	0.0007	<0.0001	3.7
	Triglycerides	0.0005	0.0001	<0.0001	3.3

After forcing age, sex, clinic site, and ethnicity into the model, waist circumference, triglycerides, HDL, LDL, and systolic and diastolic blood pressures were analyzed as independent variables. Only variables that had a P < 0.05 were considered in the final fitted model. R² = 23.6% in the overall population; 21.9% in non-Hispanic whites; 10.3% in African-Americans; and 14.6% in Hispanics.