FIGURE 2.

Mean (±SE) fasting plasma glucose concentrations by rs4580704 polymorphism at the CLOCK gene according to monounsaturated fatty acid (MUFA) intakes below and above the population median (13.2% of energy). Estimated means were adjusted for sex, age, and familial relationships. P values for the interaction (P = 0.020) terms between fat intake and the corresponding polymorphism were obtained in the hierarchical multivariate interaction model containing MUFA intake as a categorical variable with additional control for the other covariates.