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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

From: Mood and cognition in healthy older European adults: the Zenith study

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
  1. Significant effects are given in bold.