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(a) Box and whisker plot of the distribution of RNFL thickness for the AD and ED groups. (b) Scatterplot illustrating the association between the proportion of African ancestry and RNFL thickness for the entire normal group RNFL. Dark dots indicate ED group, light dots indicate AD group. In models adjusting for age and sex neither BGA (P = 0.092) nor self-report (P = 0.095) reached statistical significance.
