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Table 2 Values of weighted partial R2 (%) from PC-PR2 analysis indicating the proportion of variability of raw methylation levels explained by a specific set of covariates

From: Identifying and correcting epigenetics measurements for systematic sources of variation

Characteristics of samples β values M values
Recruitment centre 3.0 2.9
Percentages of leukocyte subtypes
 CD4T 3.2 3.2
 CD8T 3.7 3.1
 Natural killers 5.2 4.7
 B cells 1.7 1.1
 Monocytes 0.4 0.4
Alcohol intake at recruitment 0.2 0.1
Age at recruitment 0.4 0.4
BMI at recruitment 0.1 0.1
Menopausal status 0.2 0.2
Smoking status 0.1 0.2
Breast cancer status 0.1 0.1
Dietary folate 0.1 0.1