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. 2022 Jun 3;10:888219. doi: 10.3389/fpubh.2022.888219

Figure 2.

Figure 2

The association between plasma copper concentrations and prevalence of diabetes in 2,579 Chinese adults with hypertension. The association between plasma copper concentrations and the prevalence of diabetes was depicted using restricted cubic spline with three knots (10th, 50th and 90th). Black solid lines were estimated OR of diabetes risk associated with plasma copper concentrations. Gray shade area showed corresponding 95% CI. Dotted lines located at OR as 1 indicating no association. The rugs showed fraction of participants with different plasma copper concentrations ranging from 55 to 160 μg/dL. The OR of diabetes prevalence associated with plasma copper concentrations was adjusted for age, sex, current smoking, current alcohol drinking, BMI, family history of diabetes, SBP, DBP, tHcy, TC and TG. BMI, body mass index; DBP, diastolic blood pressure; SBP, systolic blood pressure; TC, total cholesterol; TG, triglycerides; tHcy, total homocysteine.