Skip to main content
. Author manuscript; available in PMC: 2014 Jul 8.
Published in final edited form as: J Int Neuropsychol Soc. 2014 Feb 13;20(4):402–412. doi: 10.1017/S135561771400006X

Table 1.

Demographic variables and neuropsychological test scores for each group

OA
 aMCI
 naMCI
 AD
 ANOVA
Variable M SD M SD M SD M SD F p
Age (years) 69.04 9.23 69.88 8.73 71.0 11.29 73.77 12.11 1.62 .187
Age range 51–88 53–92 51–93 46–91
Sex (F:M) 24:29 47:35 14:16 14:16
Ethnicity (% Caucasian) 92.5% 82.9% 76.7% 73.3%
Education (years)a,b 17.51 2.14 16.34 2.89 16.53 2.64 15.73 2.59 3.51 .016
GDSa,c 4.00 3.88 7.09 4.95 7.42 5.12 5.41 4.29 5.48 .001
MMSEa,b,d,e 28.60 1.60 26.84 2.47 28.00 2.32 21.93 4.54 42.66 <.001
WAIS-III Block Designa,b,c,d,e 13.37 2.96 9.59 3.07 10.43 2.81 6.75 3.46 31.37 <.001
Rey-O Copya,b,c,d,e 32.68 2.59 28.92 5.47 28.57 4.55 21.60 10.38 22.80 <.001
WAIS-III Digit Symbol Codinga,b,c,d,e 63.28 12.54 50.26 14.67 52.62 12.48 31.21 14.48 33.36 <.001
WAIS-III DS Forwardb,d,e 6.73 1.24 6.40 1.22 6.54 1.07 5.50 1.28 6.80 <.001
WAIS-III DS Backwarda,b,d,e 5.37 1.32 4.42 1.21 5.00 1.39 3.23 1.36 18.35 <.001
WMS-III LM-Ia,b,c,d,e,f 41.76 8.98 25.21 11.30 35.38 8.31 13.50 9.27 57.81 <.001
WMS-III LM-IIa,b,d,e,f 26.10 6.76 12.26 8.67 21.96 6.93 3.50 4.89 70.75 <.001
WMS-III VR-Ia,b,c,d,e,f 80.92 13.34 60.28 19.50 70.97 14.63 29.7 15.65 63.01 <.001
WMS-III VR-IIa,b,c,d,e,f 56.94 21.54 22.81 18.96 42.63 19.67 1.83 4.96 68.89 <.001
Rey-O – Recalla,b,c,d,e,f 17.53 5.43 8.13 5.40 12.93 4.39 2.66 3.94 65.23 <.001
TMT-Part A (in sec)a,b,c,d,e 27.34 10.09 40.12 18.96 33.90 10.03 71.07 45.88 24.73 <.001
TMT-Part B (in sec)a,b,c,d,e 71.08 34.35 136.35 74.01 106.37 43.57 227.28 87.58 36.37 <.001
Boston Naming Testa,b 57.71 1.79 50.97 8.96 53.20 8.42 47.20 9.25 13.38 <.001
FAS Fluencya,b,d,e 43.53 10.52 34.98 12.93 40.63 16.19 26.93 11.41 12.52 <.001
Animal Fluencya,b,c,d,e 21.89 4.56 17.71 5.14 18.53 5.64 11.73 6.01 24.46 <.001
Stroop Color (in sec)a,b,d,e 65.42 12.42 78.86 26.88 69.10 16.14 100.83 30.03 16.35 <.001
Stroop Word (in sec)b,d,e 49.87 10.37 55.71 15.49 51.00 10.37 67.46 18.25 10.60 <.001
Stroop Interference (in sec)a,b,d,e 125.62 31.47 162.04 57.63 141.73 45.17 217.95 54.25 19.05 <.001

Note. GDS = Geriatric Depression Scale (raw score out of 30; N = 178; Brink et al., 1982); MMSE = Mini-Mental State Examination (raw score out of 30; N = 195; Folstein, Folstein, & McHugh, 1975); WAIS-III = Wechsler Adult Intelligence Scale – 3rd Edition; Block Design (age-corrected scaled scores; N = 190; Wechsler, 1997a); Rey-O (raw score out of 36; N = 194; Meyers & Meyers, 1995); Digit Symbol Coding (N = 181; Wechsler, 1997b); DS = Digit Span (longest digit length; N = 181; Wechsler, 1997b); WMS-III = Wechsler Memory Scale – 3rd Edition; LM = Logical Memory (raw score out of 75 and 50 for LM-I and LM-II, respectively; N = 182; Wechsler, 1997b); VR = Visual Reproduction (raw score out of 104; N = 195; Wechsler, 1997b); TMT = Trail Making Test (N = 194 for part A and N = 190 for part B; Strauss et al., 2006); Boston Naming Test (N = 180); FAS and Animal Fluency (N = 195); Stroop (N = 189 for color and word trials, and N = 152 for interference). Non-Caucasian participants included African-American (n = 17), Hispanic (n = 11), and Asian (n = 5) individuals. Multiple one-way ANOVAs were completed on the demographic and neuropsychological data, with post hoc comparisons completed using a Dunnett's T3 procedure (equal variances not assumed).

a

Significant difference between OA and aMCI groups (p < .05).

b

Significant difference between OA and AD groups (p < .05).

c

Significant difference between OA and naMCI groups (p < .05).

d

Significant difference between aMCI and AD groups (p < .05).

e

Significant difference between naMCI and AD groups (p < .05).

f

Significant difference between naMCI and aMCI groups (p < .05).