APOC3 and diabetes mellitus: In a study that used multivariate regression analysis to evaluate patients without diabetes having systemic lupus erythematosus with blood glucose levels <110 mg/dL, a significant association was found between APOC3 and C-peptide (β coefficient, 0.27; 95% CI, 0.03–0.51 ng/mL; p = 0.030) [119].