Table 2.
Means (and SDs) for the state and trait measures of everyday mood and cognitive variables, also showing sex and age differences and sex*age interactions
| Variable | 55-70 yrs | 70-87 yrs | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Males | Females | Group mean | Males | Females | Group mean | Sex differences | Age differences | Sex * Age interactions | |
| State mood | |||||||||
| State PA | 34.10 (5.9) | 32.85 (6.0) | 33.48 (5.9) | 28.22 (9.2) | 27.35 (9.5) | 27.81 (9.3) | p = 0.201 | p < 0.001 | p = 0.821 |
| State NA | 13.72 (4.3) | 14.38 (5.7) | 14.05 (5.0) | 13.78 (5.5) | 13.96 (5.6) | 13.87 (5.6) | p = 0.454 | p = 0.753 | p = 0.669 |
| Trait mood and mood variability measures | |||||||||
| Trait PA | 28.63 (5.4) | 26.39 (5.2) | 27.52 (5.4) | 22.85 (7.8) | 22.14 (7.4) | 22.52 (7.6) | p = 0.034 | p < 0.001 | p = 0.267 |
| Trait PA variability | 4.94 (2.1) | 5.68 (2.1) | 5.31 (2.1) | 3.60 (1.8) | 4.49 (2.3) | 4.02 (2.1) | p < 0.001 | p < 0.001 | p = 0.726 |
| Trait NA | 11.51 (2.1) | 11.71 (2.4) | 11.61 (2.2) | 12.06 (3.2) | 12.94 (3.7) | 12.47 (3.4) | p = 0.08 | p = 0.004 | p = 0.272 |
| Trait NA variability | 1.37 (1.3) | 1.67 (1.4) | 1.52 (1.3) | 1.45 (1.3) | 2.04 (1.7) | 1.7 (1.5) | p = 0.003 | p = 0.132 | p = 0.320 |
| Cognitive function | |||||||||
| Pattern recognition memory (ms) | 2370.05 (560.3) | 2522.03 (813.5) | 2445.62 (700.0) | 3109.47 (1701.9) | 2947.80 (958.2) | 3032.98 (1398.9) | p = 0.967 | p < 0.001 | p = 0.179 |
| Spatial working memory (total errors) | 30.83 (18.9) | 42.18 (19.7) | 36.47 (20.0) | 32.15 (21.0) | 36.74 (23.5) | 34.32 (22.2) | p < 0.001 | p = 0.346 | p = 0.123 |
| 5-Choice reaction time (ms) | 377.86 (55.3) | 388.81 (61.8) | 383.30 (58.7) | 423.66 (101.2) | 466.86 (87.6) | 444.10 (97.2) | p = 0.001 | p < 0.001 | p = 0.053 |
| Match to sample visual search (ms) | 3095.51 (1010.9) | 2892.37 (987.8) | 2994.51 (1001.8) | 4005.36 (1340.5) | 4026.68 (1565.6) | 4015.45 (1447.4) | p = 0.488 | p < 0.001 | p = 0.392 |
Significant effects are given in bold.