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. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: Exp Gerontol. 2021 Jun 6;152:111433. doi: 10.1016/j.exger.2021.111433

Table 2:

Correlation and Partial Correlations Between Cognitive and Physical Performance and OCTA Measures

Spearman Correlation
Variable MoCA MMSE TW-YMCA
TW-YMCA 0.05 (0.83) −0.19 (0.41) 1
Mean RVD 0.39 (0.09) 0.21 (0.37) 0.18 (0.49)
Mean SVD 0.53 (0.02) −0.10 (0.67) −0.15 (0.52)
Mean DVD 0.02 (0.93) 0.12 (0.63) −0.05 (0.84)
Partial Correlations (adjusted for age, sex, education, BMI)
Variable MoCA MMSE TW-YMCA
TW-YMCA 0.49 (0.06) −0.30 (0.27) 1
Mean RVD 0.75 (0.001) 0.21 (0.43) 0.47 (0.07)
Mean SVD 0.73 (0.001) 0.00 (0.99) 0.49 (0.05)
Mean DVD 0.11 (0.67) −0.15 (0.58) 0.04 (0.89)

Correlation coefficient (p-value); Bold signifies significance after correction for multiple comparisons. KEY: TW-YMCA = Total Work on the YMCA Ergometer; MoCA=Montreal Cognitive Assessment; MMSE = Mini Mental State Examination; RVD = vessel density in retinal vascular network; SVD = vessel density in superficial vascular plexus; DVD = vessel density in deep vascular plexus.