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Table 1 Demographic and cognitive metrics for all participants across three timepoints. For continuous variables, values in the cells represent means ± standard deviations. MFQ-FoF: Memory Functioning Questionnaire Frequency of Forgetting Inverted Average; MMSE: Mini-Mental State Examination; WASI: Wechsler Abbreviated Scale of Intelligence; WMS-IV: Wechsler Memory Scale IV

From: Longitudinal change in hippocampal and dorsal anterior insulae functional connectivity in subjective cognitive decline

  Time 1 (N = 69) Time 2 (N = 34) Time 3 (N = 28)
Time between measurements (months) - 19.10 ± 1.62 18.43 ± .96
Baseline age (years) 68.33 ± 7.95 67.41 ± 8.95 66.46 ± 9.52
Sex (female, male) 56 F, 13M 29 F, 5 M 24 F, 4 M
Racial identity (African American/white) 54 / 15 25 / 9 20 / 8
Doctor seen for memory concerns 19 Y, 50 N 10 Y, 25 N 3 Y, 25 N
Family history of Alzheimer’s disease 34 Y, 35 N 19 Y, 15 N 11 Y, 17 N
Geriatric Depression Scale (GDS) 3.82 ± 3.93 3.62 ± 3.70 3.71 ± 3.71
Beck Depression Inventory 4.59 ± 4.12 6.71 ± 5.49 5.56 ± 3.66
Big Five Conscientiousness 37.36 ± 5.48 37.35 ± 4.60 36.75 ± 4.56
Big Five Neuroticism 17.41 ± 6.00 17.29 ± 5.39 17.89 ± 5.74
MFQ-FoF 2.99 ± .91 2.95 ± .95 2.91 ± .79
MMSE 28.32 ± 1.97 28.83 ± 1.16 28.86 ± 1.30
WASI Full IQ 4-Scale 98.09 ± 11.45 101.87 ± 12.93 100.96 ± 13.03
Rey Auditory Total 46.43 ± 9.31 48.90 ± 8.87 47.64 ± 10.03
WMS-IV Auditory Index .47 ± .12 .55 ± .11 .54 ± .13
WMS-IV Visual Index .54 ± .11 .55 ± .12 .57 ± .15
WMS-IV Visual Working Memory Index .40 ± .12 .42 ± .11 .41 ± .15
WMS-IV Immediate Memory Index .55 ± .10 .58 ± .10 .58 ± .12
WMS-IV Delayed Memory Index .47 ± .11 .51 ± .12 .53 ± .14
Trail making task B/A ratio 2.64 ± 1.25 2.34 ± .84 2.13 ± .87
Digit symbol substitution total 39.78 ± 11.41 41.70 ± 10.89 43.86 ± 13.06
Stroop task ratio 2.00 ± .47 1.91 ± .30 1.96 ± .41
Verbal fluency total 36.55 ± 7.46 39.74 ± 7.82 38.04 ± 8.79