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Bars represent means (SEs) calculated from ANCOVA after adjustment for age, race, sex, body mass index, and visit center at visit 5. P values show P for trends from ANCOVA. AVR indicates arteriolar:venular ratio; CRAE, central retinal arteriolar equivalent; CRVE, central retinal venular equivalent; DBP, diastolic blood pressure; and SBP, systolic blood pressure.
