Fig. 2

Dose–response relationships between serum copper and elevated blood pressure. The associations were adjusted for age, gender, race (Mexican American, other Hispanic non-Hispanic White, non-Hispanic Black, and other race) and Family monthly poverty level index category, BMI, serum cotinine, physical activity, energy intake and other trace metals. The solid line and dashed line represent the estimated OR and its 95% CI. BMI, Body Mass Index; OR, odds ratio; CI, confidence intervals