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Table 4 Distribution of the factor variants over the two classes obtained with k-means clustering of 2nd-log obs/exp. Sex, biopsy and tissue were compared with chi-square, age and proteasome expression level with Wilcoxon.

From: Epigenetic hereditary transcription profiles II, aging revisited

Factor

variants

class 1

class 2

P-value

sex

male

18

18

0,432

 

female

27

19

 

biopsy

surgery

36

26

0,544

 

autopsy

9

9

 

tissue

endodermic

14

20

0.157

 

mesodermic

19

21

 

age

in years

53,5

61,9

3,64E-06

expression level

 

91,9

90,0

0,592