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Table 2 Distribution of NYCP and CHOP European subjects.

From: European Population Genetic Substructure: Further Definition of Ancestry Informative Markers for Distinguishing among Diverse European Ethnic Groups

 

PCA rangeb

Percentage of samplesc

Presumed ethnicitya

PC1

PC2

NYCP

CHOP

Ashkenazi

0.030, 0.040

0.020, 0.040

13.0%

4.5%

North European

−0.016, −0.005

−0.010, 0.015

59.7%

45.4%

Italian/Greek

−0.002, 0.025

−0.035, −0.010

13.4%

16.7%

Irish

−0.016, −0.010

−0.010, 0.0001

14.0%

3.8%

  1. aPresumed ethnicity corresponding to the PCA results. The Irish group is a subset of the Northern European larger group.
  2. bThe coordinate range for PC1 and PC2 for four different groups of subjects. The first value indicates the lower boundary, and the second value the upper boundary for each PC range.
  3. cThe percentage of subjects is shown for NYCP (1,832 subjects) and CHOP (1,487 subjects).