Figure 1.
Relationship between baseline selenium and changes on Cholesterol, HDL and triglyceride levels after 7-year follow-up adjusted for age, gender, body mass index, smoking history, alcohol history, and self-reported history of stroke, hypertension, and angina. The horizontal axis represents baseline nail selenium quartile groups. The vertical axis represents the means and 95% confidence intervals of changes in the two lipids measurements, derived as the difference between follow-up and baseline lipids measures. Higher values on the vertical axis indicate greater lipid increase.