Covariates | Low-risk cognitively unimpaired older adults (mean ± SD) | High-risk cognitively unimpaired older adults (mean ± SD) | p-value |
---|---|---|---|
Arteriole diameter | 87.7 ± 12.1 µm | 92.0 ± 14.5 µm | 0.097 |
Venule diameter | 113 ± 13.9 µm | 116 ± 15.0 µm | 0.29 |
Arteriole distance from the fovea | 13.6 ± 2.38° | 14.4 ± 2.33° | 0.078 |
Venule distance from the fovea | 14.9 ± 1.76° | 15.2 ± 1.70° | 0.47 |
Arteriole linear distance of sampling | 6.39 ± 1.67 mm | 6.29 ± 1.39 mm | 0.73 |
Venule linear distance of sampling | 6.05 ± 0.90 mm | 5.88 ± 1.07 mm | 0.37 |