Fig. 2: Associations of oxidative stress indicators with dietary copper intake and low muscle mass.
A Associations of dietary copper intake and oxidative stress indicators. B Associations of oxidative stress indicators and low muscle mass. GGT gamma-glutamyl transferase. All statistical analyses accounted for sample weights, strata, and primary sampling units to reflect the nationally representative estimates. All models were adjusted for age (continuous), sex, race/ethnicity, education, family income, smoking, alcohol intake, physical activity, total energy intake (in quintiles), healthy eating index (in quintiles), BMI (<18.5, 18.5–24.9, 25–29.9, or ≥30 kg/m2), hypertension, dyslipidemia, diabetes, cancer, albuminuria, and eGFR (in quintiles).
