| Variable . | M (SD) or N (%) . |
|---|---|
| Age (y) | 74.84 (4.97) |
| Sex | |
| Male | 28 (50.9%) |
| Female | 27 (49.1%) |
| Education (y) | 15.49 (3.37) |
| Ethnicity | |
| Caucasian | 36 (65.5%) |
| Not Caucasian (Black, Hispanic, Asian, other) | 19 (34.5%) |
| GHS (0–10) | 1.36 (1.08) |
| WRAT-3 Raw Score (0–42) | 36.11 (5.15) |
| WRAT-3 Standard Score | 110.29 (8.37) |
| STW velocity (cm/s) | 72.46 (15.43) |
| DTW velocity (cm/s) | 62.53 (13.55) |
| STW letter generation rate (letter/s) | 0.53 (0.22) |
| DTW letter generation rate (letter/s) | 0.59 (0.19) |
| HbO2 STW (µM) | 0.29 (0.62) |
| HbO2 STA (µM) | 0.63 (0.55) |
| HbO2 DTW (µM) | 0.90 (0.81) |
| Left rostral middle frontal volume (mm3) | 12 596.47 (1 821.15) |
| Total gray matter volume (mm3) | 506 089.49 (51 261.60) |
| Mean cortical thickness (mm) | 2.29 (0.08) |
| Mean FA | 0.35 (0.02) |
| Verbal Fluencies FAS Total Raw Score | 43.95 (12.86) |
| Free and Cued Selective Reminding Test Raw Score | 29.60 (10.03) |
| Digit Symbol Modalities Test Total Raw Score | 57.55 (14.12) |
| Variable . | M (SD) or N (%) . |
|---|---|
| Age (y) | 74.84 (4.97) |
| Sex | |
| Male | 28 (50.9%) |
| Female | 27 (49.1%) |
| Education (y) | 15.49 (3.37) |
| Ethnicity | |
| Caucasian | 36 (65.5%) |
| Not Caucasian (Black, Hispanic, Asian, other) | 19 (34.5%) |
| GHS (0–10) | 1.36 (1.08) |
| WRAT-3 Raw Score (0–42) | 36.11 (5.15) |
| WRAT-3 Standard Score | 110.29 (8.37) |
| STW velocity (cm/s) | 72.46 (15.43) |
| DTW velocity (cm/s) | 62.53 (13.55) |
| STW letter generation rate (letter/s) | 0.53 (0.22) |
| DTW letter generation rate (letter/s) | 0.59 (0.19) |
| HbO2 STW (µM) | 0.29 (0.62) |
| HbO2 STA (µM) | 0.63 (0.55) |
| HbO2 DTW (µM) | 0.90 (0.81) |
| Left rostral middle frontal volume (mm3) | 12 596.47 (1 821.15) |
| Total gray matter volume (mm3) | 506 089.49 (51 261.60) |
| Mean cortical thickness (mm) | 2.29 (0.08) |
| Mean FA | 0.35 (0.02) |
| Verbal Fluencies FAS Total Raw Score | 43.95 (12.86) |
| Free and Cued Selective Reminding Test Raw Score | 29.60 (10.03) |
| Digit Symbol Modalities Test Total Raw Score | 57.55 (14.12) |
Notes: DTW = dual-task walk; FA = fractional anisotropy; GHS = Global Health Score; HbO2 = oxygenated hemoglobin; STA = single-task alpha; STW = single-task walk; WRAT-3 = The Wide Range Achievement Test, 3rd edition. GHS ranges from 0 to 10 with higher values indicating the presence of more comorbidities; WRAT-3 raw score ranges from 0 to 42, with higher values indicating better performance; velocity measured in cm/s, with higher values indicating faster walking; letter generation rate measured in letters/s, with higher values indicating better performance; for verbal fluency raw score, free and cued selective reminding raw score, and digit symbol modalities raw score, higher values indicate better performance.
| Variable . | M (SD) or N (%) . |
|---|---|
| Age (y) | 74.84 (4.97) |
| Sex | |
| Male | 28 (50.9%) |
| Female | 27 (49.1%) |
| Education (y) | 15.49 (3.37) |
| Ethnicity | |
| Caucasian | 36 (65.5%) |
| Not Caucasian (Black, Hispanic, Asian, other) | 19 (34.5%) |
| GHS (0–10) | 1.36 (1.08) |
| WRAT-3 Raw Score (0–42) | 36.11 (5.15) |
| WRAT-3 Standard Score | 110.29 (8.37) |
| STW velocity (cm/s) | 72.46 (15.43) |
| DTW velocity (cm/s) | 62.53 (13.55) |
| STW letter generation rate (letter/s) | 0.53 (0.22) |
| DTW letter generation rate (letter/s) | 0.59 (0.19) |
| HbO2 STW (µM) | 0.29 (0.62) |
| HbO2 STA (µM) | 0.63 (0.55) |
| HbO2 DTW (µM) | 0.90 (0.81) |
| Left rostral middle frontal volume (mm3) | 12 596.47 (1 821.15) |
| Total gray matter volume (mm3) | 506 089.49 (51 261.60) |
| Mean cortical thickness (mm) | 2.29 (0.08) |
| Mean FA | 0.35 (0.02) |
| Verbal Fluencies FAS Total Raw Score | 43.95 (12.86) |
| Free and Cued Selective Reminding Test Raw Score | 29.60 (10.03) |
| Digit Symbol Modalities Test Total Raw Score | 57.55 (14.12) |
| Variable . | M (SD) or N (%) . |
|---|---|
| Age (y) | 74.84 (4.97) |
| Sex | |
| Male | 28 (50.9%) |
| Female | 27 (49.1%) |
| Education (y) | 15.49 (3.37) |
| Ethnicity | |
| Caucasian | 36 (65.5%) |
| Not Caucasian (Black, Hispanic, Asian, other) | 19 (34.5%) |
| GHS (0–10) | 1.36 (1.08) |
| WRAT-3 Raw Score (0–42) | 36.11 (5.15) |
| WRAT-3 Standard Score | 110.29 (8.37) |
| STW velocity (cm/s) | 72.46 (15.43) |
| DTW velocity (cm/s) | 62.53 (13.55) |
| STW letter generation rate (letter/s) | 0.53 (0.22) |
| DTW letter generation rate (letter/s) | 0.59 (0.19) |
| HbO2 STW (µM) | 0.29 (0.62) |
| HbO2 STA (µM) | 0.63 (0.55) |
| HbO2 DTW (µM) | 0.90 (0.81) |
| Left rostral middle frontal volume (mm3) | 12 596.47 (1 821.15) |
| Total gray matter volume (mm3) | 506 089.49 (51 261.60) |
| Mean cortical thickness (mm) | 2.29 (0.08) |
| Mean FA | 0.35 (0.02) |
| Verbal Fluencies FAS Total Raw Score | 43.95 (12.86) |
| Free and Cued Selective Reminding Test Raw Score | 29.60 (10.03) |
| Digit Symbol Modalities Test Total Raw Score | 57.55 (14.12) |
Notes: DTW = dual-task walk; FA = fractional anisotropy; GHS = Global Health Score; HbO2 = oxygenated hemoglobin; STA = single-task alpha; STW = single-task walk; WRAT-3 = The Wide Range Achievement Test, 3rd edition. GHS ranges from 0 to 10 with higher values indicating the presence of more comorbidities; WRAT-3 raw score ranges from 0 to 42, with higher values indicating better performance; velocity measured in cm/s, with higher values indicating faster walking; letter generation rate measured in letters/s, with higher values indicating better performance; for verbal fluency raw score, free and cued selective reminding raw score, and digit symbol modalities raw score, higher values indicate better performance.
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