The mean plasma UA was 6.0 mg/dl (range 2.4 to 11.5), and
the SD was 1.25 mg/dl. The mean age of the population at
baseline was 61 yr (range 47 to 81), and the mean BMI was 25.0
kg/m2 (range 16.4 to 29.9). The characteristics and laboratory
values of the controls at baseline are shown in Table 1, stratified
by quartile of plasma UA. With increasing quartile of UA, we
observed higher BMI and increasing levels of plasma creatinine
(and decreasing eGFR), fasting insulin, triglycerides, and total
cholesterol.