Table 1.
Characteristics of the analytic sample in a study of age acceleration indexed by the epigenetic algorithms Horvath, Hannum, Phenoage and DunedinPoAm: mean and standard deviation (n = 3105) by categorical variables, UK Household Longitudinal Study, 2010–2012.
| N (%) | Mean Horvath (SD) | Mean Hannum (SD) | Mean Phenoage (SD) | Mean DunedinPoAm (SD) | Mean age (SD) | |
|---|---|---|---|---|---|---|
| Total | 3140 (100) | 0.00 (3.75) | 0.00 (3.28) | − 0.00 (4.91) | − 0.00 (3.60) | 54.5 (14.03) |
| Age | ||||||
| Old (born before 1956) | 1522 (48.5) | 0.01 (4.16) | − 0.01 (3.74) | − 0.16 (5.24) | − 0.06 (4.15) | 66.6 (7.46) |
| Young (born in or after 1956) | 1618 (51.5) | − 0.01 (3.31) | 0.01 (2.79) | 0.15 (4.57) | 0.06 (2.98) | 43.1 (7.89) |
| Two sample t-test p-value | 0.91 | 0.91 | 0.08 | 0.37 | < 0.0001 | |
| Sex | ||||||
| Male | 1388 (44.2) | 0.53 (3.79) | 0.97 (3.29) | 0.05 (4.90) | 0.40 (3.54) | 55.19 (14.07) |
| Female | 1752 (55.8) | − 0.42 (3.65) | − 0.77 (3.07) | − 0.04 (4.92) | − 0.31 (3.62) | 53.93 (13.98) |
| Two sample t-test p-value | < 0.0001 | < 0.0001 | 0.61 | < 0.0001 | 0.01 | |
| Marital status | ||||||
| Single | 418 (13.3) | − 0.44 (3.43) | − 0.11 (2.82) | − 0.15 (4.79) | 0.33 (2.91) | 42.13 (13.02) |
| Married (coupled) | 2036 (64.8) | − 0.003 (3.60) | 0.03 (3.16) | − 0.28 (4.60) | − 0.33 (3.48) | 55.17 (13.09) |
| Divorced (separate) | 686 (21.9) | 0.28 (4.28) | − 0.02 (3.87) | 0.94 (5.69) | 0.78 (4.14) | 59.97 (12.85) |
| One way ANOVA p-value | 0.009 | 0.73 | < 0.0001 | < 0.0001 | < 0.0001 | |
| Highest education qualification | ||||||
| University degree | 690 (22.0) | 0.12 (3.44) | 0.12 (2.92) | − 0.45 (4.51) | − 0.94 (2.80) | 49.44 (13.20) |
| A-level | 970 (30.9) | − 0.07 (3.79) | − 0.04 (3.38) | − 0.07 (5.09) | − 0.12 (3.50) | 53.13 (13.82) |
| GCSE | 1062 (33.8) | − 0.07 (3.81) | − 0.03 (3.28) | 0.10 (4.96) | 0.33 (3.60) | 54.71 (13.38) |
| No qualification | 409 (13.0) | 0.04 (3.88) | − 0.09 (3.63) | 0.64 (4.85) | 1.02 (4.52) | 65.71 (11.20) |
| Missing data | 9 (0.3) | 4.01 (5.54) | 2.52 (2.24) | 2.29 (7.61) | − 0.45 (3.40) | 52.22 (9.97) |
| One way ANOVA p-value | 0.69 | 0.70 | 0.004 | < 0.0001 | < 0.0001 | |
| Childhood social class | ||||||
| Disadvantage | 968 (30.8) | 0.13 (3.94) | 0.29 (3.34) | 0.63 (5.12) | 0.46 (3.99) | 57. 10 (13.70) |
| Intermediate | 1836 (58.5) | − 0.06 (3.68) | − 0.11 (3.34) | − 0.30 (4.80) | − 0.14 (3.42) | 53.90 (14.07) |
| Advantage | 336 (10.7) | − 0.04 (3.49) | − 0.24 (2.70) | − 0.20 (4.72) | − 0.56 (3.19) | 50.11 (13.37) |
| One way ANOVA p-value | 0.44 | 0.003 | < 0.0001 | < 0.0001 | < 0.0001 | |
| Adulthood social class | ||||||
| Disadvantage | 941 (30.0) | 0.05 (3.86) | 0.05 (3.40) | 0.62 (5.00) | 0.81 (3.91) | 56.47 (14.30) |
| Intermediate | 776 (24.7) | − 0.11 (3.88) | − 0.38 (3.40) | − 0.22 (5.06) | − 0.08 (3.57) | 56.03 (13.84) |
| Advantage | 1423 (45.3) | 0.03 (3.59) | 0.17 (3.12) | − 0.29 (4.73) | − 0.49 (3.29) | 52.33 (13.66) |
| One way ANOVA p-value | 0.62 | 0.001 | < 0.0001 | < 0.0001 | < 0.0001 | |