Functional genomics analysis identifies T and NK cell activation as a driver of epigenetic clock progression

Table 1 Description of the investigated epigenetic clocks. "Training samples" refers to the number of samples on which the clock was trained; "Training tissues" refers to the tissues used for development of the clock

Epigenetic clock	Number of CpGs	Training samples	Training tissues	Publication date
Hannum Bld	71	656	Whole blood	2013 [2]
Horvath MT	353	3931	27 tissue types	2013 [3]
Horvath Skn/Bld	391	896	Whole blood, buccal cells, various skin cells	2018 [4]
Zhang Bld/Slv	514	13566	Whole blood, saliva	2019 [5]

ISSN: 1474-760X