Determinants of Resting Oxidative Stress in Middle-Aged and Elderly Men and Women: WASEDA’S Health Study

Table 6

Stepwise multiple regression analysis of each oxidative stress marker in all participants.

	Partial regression coefficient	95% confidence interval	Standard partial regression coefficient	VIF	value
PC^1
Intercept	1.518	0.795–2.242			<0.001
Age (years)	-0.010	-0.016–−0.004	-0.11	1.10	0.002
Leg extension power (W)	0.000022	0.000–0.000	-0.12	1.38	0.008
BMI (kg/m^2)	0.034	0.011–−0.057	0.12	1.55	0.004
HDL-C (mg/dL)	0.004	0.000–0.008	0.08	1.34	0.040
F2-IsoP^2
Intercept	37.208	5.622–68.794			0.021
Smokers	3.403	-0.145–6.952	0.07	1.07	0.060
BMI (kg/m^2)	0.690	-0.013–1.393	0.07	1.09	0.054
HbA1c (%)	-4.185	-9.009–0.640	-0.06	1.05	0.089
TBARS^3
Intercept	1.634	1.055–2.213			<0.001
Glucose (mg/dL)	0.008	0.004–0.012	0.18	1.98	<0.001
CRF (mL/kg/min)	0.016	0.009–0.023	0.16	1.15	<0.001
Age (years)	0.009	0.005–0.014	0.15	1.29	<0.001
TG (mg/dL)	0.001	0.000–0.001	0.11	1.05	0.001
Antioxidant supplementation	0.186	0.070–0.303	0.10	1.01	0.002
HbA1c (%)	0.183	-0.308–−0.057	-0.13	1.99	0.004

VIF: variance inflation factor; PC: protein carbonyl; F₂-IsoP: F₂-isoprostane; TBARS: thiobarbituric acid reactive substances; LBM: lean body mass; BMI: body mass index; HDL-C: high-density lipoprotein cholesterol; HbA1c: haemoglobin A1c; glucose: fasting blood glucose; CRF: cardiorespiratory fitness; TG: triglycerides. , adjusted ; , adjusted ; , adjusted .