Table 2.

Clinical Characteristics of Sample

	Full Sample		CDR=0		CDR>0		p
CDR	N	%	N	%	N	%
0	27	67.5	27	67.5
0.5	12	30.0			12	30.0
1	1	2.5			1	2.5
Cognitive	Mean (SD)	Range	Mean (SD)	Range	Mean (SD)	Range
MoCA	25.20 (2.93)	20 to 30	26.22 (2.67)	21 to 30	23.08 (2.29)	20 to 28	0.001
Executive	0.36 (0.55)	−0.78 to 1.72	0.54 (0.52)	−0.56 to 1.72	0.00 (0.45)	−0.78 to 1.10	0.003
Semantic	1.45 (0.69)	−0.38 to 2.69	1.68 (0.60)	0.37 to 2.69	0.96 (0.63)	−0.38 to 2.01	0.001
Verbal Memory	0.68 (0.85)	−0.97 to 2.64	0.99 (0.69)	−0.78 to 2.64	0.03 (0.81)	−0.97 to 1.28	<0.001
Function
Communication	14.53 (3.45)	2 to 20	15.67 (2.53)	10 to 20	12.15 (3.98)	2 to 17	0.002
Finances	17.90 (2.05)	13 to 20	18.33 (1.94)	13 to 20	17.00 (2.04)	13 to 20	0.053
Medication Management	29.97 (4.00)	19 to 33	31.48 (2.39)	24 to 33	26.58 (4.85)	19 to 33	<0.001
IADLS	7.95 (0.22)	7 to 8	8.00 (0.00)	8 to 8	7.85 (0.38)	7 to 8	0.037
FAQ	1.41 (2.43)	0 to 10	0.12 (0.44)	0 to 2	4.08 (2.71)	1 to 10	<0.001
ROI Mean Composite
EMF	0.53 (0.02)	0.48 to 0.58	0.53 (0.02)	0.49 to 0.57	0.53 (0.02)	0.48 to 0.58	0.780
LMF	0.54 (0.03)	0.49 to 0.59	0.55 (0.03)	0.49 to 0.59	0.53 (0.03)	0.50 to 0.58	0.034

Note: CDR=Clinical Dementia Rating; MoCA=Montreal Cognitive Assessment; IADLS=Instrumental Activities of Daily Living Scale; FAQ=Functional Activities Questionnaire; ROI=Region of Interest; EMF=Early-Myelinated Fiber composite; LMF=Late-Myelinated Fiber composite

All SENAS scores were presented in unadjusted z-score like units where a score of zero corresponded to the mean of a demographically diverse, non-demented normative sample composed primarily of Hispanics and Whites and differences from the mean were expressed in standard deviation units.