Table 1. ABC36 cognitive test scores and imprint methylation levels in blood DNA.
| Mean | Standard Deviation | n | |
|---|---|---|---|
| 1Measures of cognitive ability | |||
| Moray House Test | 42.0 | 13.5 | 480 |
| National Adult Reading Test | 108.9 | 10.6 | 474 |
| Raven’s Progressive Matrices | 35.6 | 8.8 | 462 |
| 2Average methylation | |||
| H19ICR | 58.0 | 4.3 | 462 |
| IGF2 | 49.3 | 5.8 | 467 |
| SNRPN | 46.6 | 3.7 | 464 |
| PEG3 | 51.2 | 2.8 | 474 |
| MEST1 | 48.2 | 3.1 | 469 |
| NESPAS | 47.8 | 2.9 | 472 |
| KvDMR | 47.8 | 2.7 | 461 |
| IG-DMR | 63.1 | 1.8 | 478 |
| ZAC1 | 43.8 | 3.6 | 477 |
1Cognitive ability was measured in children using the Moray House Test (a test of general intelligence), and in adults using the National Adult Reading Test (a measure of crystallised intelligence) and Raven’s Matrices (a measure of fluid intelligence).
2Mean methylation across measured CpG sites within each imprint.