| Predictors | Total sample | Age group 50 - 64 | Age group 65 - 79 | Age group 80 - 105 |
| Controls | ||||
| Age at the time of interview | 68.70 (9.81) | 58.79 (3.69) | 71.27(4.22) | 84.71(3.99) |
| Gender | ||||
| Men | 43.2% (32,735) | 41.7% (11,854) | 45.2% (15,995) | 41.0% (4886) |
| Women | 56.8% (42,966) | 58.3% (16,548) | 54.8% (19,380) | 59.0% (7038) |
| Big Five Personality Traits | ||||
| Extraversion | 3.48 (0.92) | 3.51 (0.92) | 3.47 (0.92) | 3.41 (0.93) |
| Agreeableness | 3.65 (0.83) | 3.62 (0.84) | 3.66 (0.83) | 3.73 (0.82) |
| Conscientiousness | 4.12 (0.80) | 4.13 (0.80) | 4.12 (0.80) | 4.08 (0.82) |
| Neuroticism | 2.66 (1.01) | 2.67 (1.00) | 2.66 (1.01) | 2.65 (0.99) |
| Openness | 3.28 (0.94) | 3.34 (0.92) | 3.28 (0.95) | 3.15 (0.94) |
| Number of respondents | 75,700 | 28,402 | 35,375 | 11,923 |