Table 1.

Descriptive statistics of participant self-report variables who completed Paired Associates Learning (PAL) for the first time

	N=14,528
Age, Mean (M) ± Standard deviation (SD) (min-max)	66.3 ± 11.3 (18-99)
Education in years, M ± SD (min-max)	16.6 ± 2.27 (6-20)
Female, n(%)	10,526 (72.5%)
Race, n(%)
Black/African American	335 (2.3%)
Asian	404 (2.8%)
Native American	261 (1.8%)
Pacific Islander	36 (0.2%)
White	13,487 (92.8%)
Other	412 (2.8%)
More than 1 race	414 (2.8%)
Latino, n(%)	922 (6.3%)
Self-report Everyday Cognition Scale Score*, M ± SD (min-max)	1.4 ± 0.44 (1-4)
Study partner-report Everyday Cognition Scale Score†, M ± SD (min-max)) n=2,815	1.3 ± 0.43 (1-4)
Patient Health Questionnaire-9 score‡, M ± SD (min-max)	3.7 ± 4.15 (0-27)
Self-report Mild Cognitive Impairment, n(%) n=6,481	496 (3.4%)
Self-report Alzheimer’s disease, n(%)* n=6,481	54 (0.4%)
Subjective Memory Concern, n(%)	6,162 (42.4%)
Family History of Alzheimer’s disease, n(%)	5,038 (34.7%)

Note.

^*Self-report Everyday Cognition Scale normal range: 1-4p;

^†Study partner-report ECog normal range: 1-4;

^‡Patient Health Questionnaire (PHQ-9) normal range: 0-27