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. 2009 Jun;18(6):795–801. doi: 10.1089/jwh.2008.0988

Table 3.

Factors Related to Oxidative Stress (n = 122)^a

oxLDL^b: Overall model R² = 14.0% (Adj R² = 11.81%), F = 6.40 (p = 0.0005)^c
Independent variable	Parameter estimate	Percentage variance^d	p value	Variance inflation
Intercept	−11.40		0.674
AndGynFM ratio	13.62	6.16	<0.0044	1.03
Age	1.135	4.00	0.021	1.03
Serum iron	0.103	2.79	0.053	1.00

PGF_2α: Overall model R² = 15.87% (Adj R² = 13.73%), F = 7.42 (p = 0.0001)^e
Independent variable	Parameter estimate	Percentage variance^d	p value	Variance inflation
Intercept	1.142		0.0012
AndGynFM ratio	0.617	4.81	0.011	1.19
HOMA	0.158	3.86	0.021	1.21
Serum iron	0.005	2.71	0.054	1.02

^{^a}

Multiple regression analysis with stepwise selection.

^{^b}

oxLDL, oxidized low-density lipoproteins; PGF_2α, urinary isoprostanes; AndGynFM ratio, androidal (waist + hip)/gynoidal (thigh) fat mass ratio; HOMA, homeostasis model assessment of insulin resistance.

^{^c}

Variables eliminated (p > 0.10): age, serum ferritin, transferrin saturation, HOMA, intracellular antioxidants (catalase, SOD, GPX), dietary antioxidants (vitamins E and C), iron, energy intake.

^{^d}

Squared semipartial type II correlation coefficient, which accounts for shared variance among variables.

^{^e}

Variables eliminated (p > 0.10): age, serum ferritin, total cholesterol, intracellular antioxidants (catalase, SOD, GPX), dietary antioxidants (vitamins E and C), iron, and energy intake.