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Table 2 Levels of AARC gains and losses stratified by age

From: International relevance of two measures of awareness of age-related change (AARC)

Age
  Class 1:
50 to 65
(N = 4929)
Class 2:
66 to 75
(N = 3758)
Class 3:
76 and over (N = 723)
Class 1 vs 2 Class 1 vs 3 Class 2 vs 3 F statistic (df) p-value
  Mean (SD) Mean (SD) Mean (SD) Mean difference [95% CI] Mean difference [95% CI] Mean difference [95% CI]   
AARC-10 SF gains 18.1 (3.9) 17.8 (3.9) 17.4 (3.7) −0.3 [−0.5, 0.1] −0.7 [−1.0, − 0.3] −0.4 [− 0.8, − 0.1] 12.1 (2) <.0001
AARC-10 SF losses 9.4 (3.2) 10.2 (3.1) 12.1 (3.8) 0.8 [0.6, 0.9] 2.7 [2.4, 3.0] 1.9 [1.7, 2.2] 243.4 (2) <.0001
AARC-50 cognitive functioning gains 14.3 (4.4) 13.6 (4.4) 13.3 (4.4) −0.7 [−0.9, 0.5] −1.0 [−1.4, − 0.6] −0.3 [− 0.7, 0.1] 34.5 (2) <.0001
AARC-50 cognitive functioning losses 9.8 (3.7) 10.4 (3.5) 12.0 (4.1) 0.6 [0.4, 0.8] 2.2 [1.9, 2.5] 1.6 [1.2, 1.9] 123.0 (2) <.0001
  1. Total sample size (N) = 9410