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Table 3 Cognitive test results for each cohort

From: The age-related effect on cognitive performance in cognitively healthy elderly is mainly caused by underlying AD pathology or cerebrovascular lesions: implications for cutoffs regarding cognitive impairment

Cognitive testA. Study cohortB. No progress in CDRC. No amyloid or tau pathologyD. No vascular pathologyE. No measurable in vivo pathology
ADAS-delayed recall1.98 (1.93)1.79 (1.72)1.80 (1.78)1.81 (1.80)1.59 (1.56)
ADAS naming0.38 (0.79)0.34 (0.74)0.36 (0.79)0.30 (0.75)0.24 (0.68)
Animal Fluency21.7 (5.5)22.1 (5.4)22.0 (5.5)22.4 (5.3)23.0 (5.3)
AQT66.0 (12.9)65.1 (12.3)65.8 (12.9)63.8 (12.0)63.3 (11.1)
Stroop28.9 (7.4)28.5 (7.0)28.6 (7.5)27.5 (6.9)26.9 (6.7)
TMT A46.0 (17.0)45.6 (17.1)45.6 (16.9)43.0 (14.8)41.0 (12.0)
TMT B104.4 (50.8)101.8 (49.4)101.9 (49.0)97.1 (44.7)90.0 (36.5)
SDMT37.0 (8.4)37.5 (8.3)37.5 (8.5)38.4 (8.3)39.1 (8.0)
  1. Data are shown as mean (SD). A: The entire population. B: No progress in Clinical Dementia Rating (CDR) over 2 years. C: No preclinical AD (i.e., CSF Aβ42/40 and P-tau not abnormal). D: No vascular pathology. E: No measurable pathology (i.e., no AD pathology, cerebrovascular pathology or increased NfL)