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Table 1 Overview of the DNA methylation datasets. The rows correspond to the datasets used in this article. Columns report the tissue source, DNA methylation platform, number of participants, access information, and citation and a reference to the use in this text

From: An epigenetic clock analysis of race/ethnicity, sex, and coronary heart disease

Tissue source Array Participants (n) Women (n) African Ancestry, Caucasian, Hispanic, Tsimane, East Asian (n) Mean age (years) (range) Available Citation Figure
1. Women’s Health Initiative (blood) 450 1462 1462 676, 353, 433, 0, 0 63 (50–80) dbGAP, NHLBI Current article 1
2. Bogalusa (blood) 450 969 547 288, 681, 0, 0, 0 43 (29–51) dbGAP, NHLBI Current article 1
3. PEG (blood) 450 335 138 0, 289, 46, 0, 0 70 (36–91) GSE72775 Current article 1
4. Saliva from PEG 450 259 113 0, 166, 93, 0, 0 69 (36–88) GSE78874 Current article 1
5. Older Tsimane and others 450 310 150 0, 235, 38, 37, 0 66 (35–92) GSE72773 Current article 3
6. Younger Tsimane and Caucasians 450 46 31 0, 24, 0, 22, 0 15 (2–35) GSE72777 Current article 3
7. East Asians vs. Caucasians (PSP samples removed) 450 312 132 0, 279, 0, 0, 33 68 (34–93) GSE53740 Li, 2014 [73] 3
8. African populations 450 256 50 256, 0, 0, 0, 0 40 (16–90) EGAS00001001066 Fagny, 2015 [42] 4
9. Cord blood 27 216 110 92, 70, 0, 0, 0 0 (0–0) GSE27317 Adkins, 2011 [44]  
10. Male saliva 27 91 0 0, 59, 32, 0, 0 29 (21–55) GSE34035 Liu, 2010 [74]  
11. Female saliva 27 42 42 0, 27, 15, 0, 0 27 (21–55) GSE34035 Liu, 2010 [74]  
12. Lymphoblastoid cell lines 450 237 154 75, 68, 0, 0, 94 34 (5–73) GSE36369 Heyn, 2013 [88] Additional file 1