Table 1. Comparison of the epigenetic age estimation of three different clocks.

Clock	Pearson’s r	p-value	Median error	Maximum error
Skin & Blood	0.94	5.03E-308	3.83	32.20
Multi-tissue	0.92	1.58E-259	3.84	39.08
PhenoAge	0.85	5.10E-186	7.88	47.56

Errors given in absolute numbers.