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. 2021 Dec 16;77(4):664–672. doi: 10.1093/gerona/glab376

Table 1.

Group Characteristics

CI (n = 30) AD (n = 30) p Value
Age, mean (SD) 90.2 (5.1) 90.11 (5.7) NA
Sex, male, n (%) 5 (17) 5 (17) NA
Education, years, median (IQR) 18 (21–16) 18 (21–18) .73
BMI, median (IQR) 24.0 (25.2–22.6) 24.8 (29–23.4) .29
Walking speed, m/s, mean (SD) 0.63 (0.24) 0.56 (0.19) .34
Grip strength, kg, mean (SD) 33.5 (15.1) 30.1 (10.4) .50
Frailty score, median (IQR) 0.45 (1.57–0.01) 0.55 (1.02–0.12) .68
GCF score, mean (SD) 0.13 (0.48) −2.04 (1.12) <.001*
GCF score decline per year, mean (SD) 0.03 (0.09) 0.18 (0.11) <.001*
MMSE, median (IQR) 28 (28–30) 14 (3–21) <.001*
Coronary artery disease, n (%) 7 (23.3) 7 (23.3) 1
Stroke, n (%) 6 (20) 6 (20) 1
Cancer, n (%) 12 (40) 9 (30) .42
Hypertension, n (%) 16 (53.3) 25 (83.3) .01*
Thyroid disease, n (%) 5 (16.7) 11 (36.7) .08
Claudication, n (%) 5 (16.7) 11 (36.7) .08
Diabetes, n (%) 3 (10) 7 (23.3) .17
Systolic BP mean (SD) 123.85 (19.22) 133.69 (15.78) .06
Diastolic BP mean (SD) 67.45 (9.74) 72.04 (11.59) .19
PMI, hours, median (IQR) 5.63 (15.33–4.27) 6.93 (10.58–4.25) .98
Overall amyloid-β score, median (IQR) 3.16 (1.12–5.7) 6.19 (1.8–8.53) .04*
Hippocampal amyloid-β score, median (IQR) 1.15 (0–2.04) 2.39 (0.56–3.86) .01*
Superior frontal amyloid-β score, median (IQR) 3.14 (0.75–10.03) 5.49 (2.09–9.38) .88
Midfrontal gyrus amyloid-β score, median (IQR) 4.96 (0.61–11.57) 7.69 (3.20–12.07) .04*
Overall tangle score, median (IQR) 1.47 (0.57–4.70) 6.44 (4.85–16.97) <.001*
Hippocampal tangle score, median (IQR) 4.18 (2.20–16.46) 30.64 (14.76–38.67) <.001*
Superior frontal tangle score, median (IQR) 0.01 (0–0.16) 1.02 (0.01–6.92) .006*
Midfrontal gyrus tangle score, median (IQR) 0.001 (0–0.1) 0.27 (0.01–6.35) .001*

Notes: AD = Alzheimer’s dementia; BMI = body mass index; BP = blood pressure; CI = cognitively intact; GCF = global cognitive function; IQR = interquartile range; MMSE = Mini-Mental State Examination; PMI = postmortem interval; SD = standard deviation; NA = not applicable.

*p ≤ .05.