Table 1.
Subject demographics
| Pre‐QC | Post‐QC for morphological analyses | Post‐QC for T1w/T2w analyses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Total | HA | ADB | Total | HA | ADB | Total | HA | ADB | |
| N | 253 | 106 | 147 | 178 | 90 | 88 | 162 | 87 | 75 |
| Mean age (years) (±SD) | 58.2 (15.6) | 46.2 (16.5) | 66.9 (6.3) | 54.9 (15.7) | 44.5 (15.4) | 65.6 (5.8) | 54.3 (16.2) | 44.2 (15.4) | 66.1 (5.9) |
| Sex (female:male) | 146:107 | 57:49 | 89:58 | 110:68 | 52:38 | 58:30 | 101:61 | 51:36 | 50:25 |
| Handedness (# right‐handers) | 188 | 106 | 82 | 141 | 90 | 51 | 137 | 87 | 50 |
| Average number of years of education (±SD) | 16.4 (3.4) | 16.6 (3.3) | 16.3 (3.4) | 16.7 (3.4) | 16.6 (3.4) | 16.7 (3.4) | 16.6 (3.4) | 16.7 (3.4) | 16.6 (3.5) |
| MMSE (±SD) | 28.6 (1.5) | 28.8 (1.3) | 28.4 (1.6) | 28.8 (1.4) | 29.0 (1.2) | 28.6 (1.6) | 28.8 (1.4) | 29.0 (1.2) | 28.5 (1.6) |
| MOCA (±SD) | NA | NA | 26.4 (2.7) | NA | NA | 26.5 (2.6) | NA | NA | 26.3 (2.7) |
| RBANS (±SD) | 99.9 (13.2) | 101.6 (14.1) | 98.7 (12.4) | 101.2 (13.5) | 102.8 (13.7) | 99.7 (13.3) | 101.4 (13.6) | 103.2 (13.5) | 99.4 (13.6) |
| WASI (IQ) (±SD) | NA | 104.3 (18.9) | NA | NA | 103.9 (18.1) | NA | NA | 104.6 (17.8) | NA |
Note. Summary subject characteristics for the total sample, as well as the two studies (Healthy Aging Study [HA] and Alzheimer's Disease Biomarker Study [ADB]) separately, for all subjects prior to any quality control (QC; pre‐QC) and for all subjects that passed quality controls for each of the two analyses conducted (Post‐QC for Morphological Analyses & Post‐QC for T1w/T2w Analyses). For the morphological analyses (i.e., volume and shape analyses), subjects were excluded first based on the motion/artifacts QC scores in the T1w images, and then based on score of accuracy of MAGeT label outputs. For the T1w/T2w analyses, subjects were excluded based on the motion/artifacts QC scores in T1w and T2w images, and based on score of accuracy of MAGeT label outputs.
Abbreviations: IQ, intelligence quotient; MMSE, Mini Mental State Examination; MoCA, Montreal Cognitive Assessment; RBANS, Repeatable Battery for the Assessment of Neuropsychological Status; SD, standard deviation; WASI, Wechsler Abbreviated Scale of Intelligence.