Table 1 Descriptive statistics for epigenetic aging measures
From: Genetic and environmental contributions to epigenetic aging across adolescence and young adulthood
Variable | Early adolescence | Late adolescence | Emerging adulthood | Young adulthood | ||||
|---|---|---|---|---|---|---|---|---|
Time 1: age 9.5 | Time 2: age 12 | Time 1: age 15.5 | Time 2: age 18 | Time 1: age 21.5 | Time 2: age 24 | Time 1: age 27.5 | Time 2: age 30 | |
N (MZ pairs/DZ pairs) | 326 (82/81) | 372 (87/99) | 152 (42/34) | 126 (52/11) | ||||
Chronological Age M (SD) | 9.51 (0.33) | 11.83 (0.58) | 15.48 (0.31) | 17.75 (0.58) | 21.58 (0.37) | 23.89 (0.62) | 27.60 (0.70) | 29.92 (1.04) |
Horvath Accel. M (SD) | − 0.02 (2.64) | − 0.25 (3.35) | − 0.07 (3.56) | 0.28 (3.99) | 0.47 (4.30) | 0.29 (4.38) | − 0.30 (4.17) | − 0.52 (4.20) |
PedBE Accel. M (SD) | − 0.10 (0.91) | − 0.21 (0.98) | 0.10 (0.95) | 0.24 (1.14) | 0.16 (1.21) | 0.17 (1.36) | − 0.22 (1.24) | − 0.39 (1.30) |
GrimAge Accel. M (SD) | 0.31 (2.03) | − 0.08 (2.41) | − 0.44 (2.32) | 0.11 (2.40) | 0.09 (2.23) | 0.01 (2.35) | 0.37 (2.59) | − 0.14 (2.61) |
DunedinPACE M (SD) | 0.00 (0.07) | − 0.01 (0.08) | − 0.01 (0.08) | 0.00 (0.08) | 0.00 (0.08) | 0.00 (0.08) | 0.02 (0.08) | 0.02 (0.09) |