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Table 4 Macular pigment optical density variables (volume, area, maximum and mean) and their correlations with ethnicity

From: Macular pigment optical density in a Brazilian sample

Variable

White × black

White × biracial

Black × biracial

p

p

p

MPOD volume

< 0.001*

0.907

< 0.001*

MPOD area

0.003*

0.331

< 0.001*

Max MPOD

< 0.001*

0.850

< 0.001*

Mean MPOD

< 0.001*

0.359

< 0.001*

  1. Mann–Whitney test for independent data with a 95% confidence interval
  2. MPOD, macular pigment optical density; max, Maximum
  3. *Level of significance of p < 0.05