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Table 1 Correlation of age predictions with chronological age

From: Individual CpG sites that are associated with age and life expectancy become hypomethylated upon aging

  Weidner99 CpGs (61 hypo- and 38 hypermethylated) Hannum71 CpGs (31 hypo- and 40 hypermethylated) Horvath 353 CpGs (186 hypo- and 167 hypermethylated)
Discovery set (n = 864)
 Correlation with age (Spearman) 0.705 0.809 0.761
 Mean average deviation (years) 4.76 5.82 4.19
Validation set (n = 1000)
 Correlation with age (Spearman) 0.712 0.774 0.750
 Mean average deviation (years) 4.78 7.00 3.95
Overall (n = 1864)
 Correlation with age (Spearman) 0.705 0.787 0.753
 Mean average deviation (years) 4.75 6.45 4.06