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. Author manuscript; available in PMC: 2009 Aug 27.
Published in final edited form as: J Gerontol A Biol Sci Med Sci. 2008 Aug;63(8):855–859. doi: 10.1093/gerona/63.8.855

Table 1.

Demographic Characteristics and Prevalence of Distress for Patients With and Without Alzheimer’s Dementia.

Patient Characteristics Dementia n = 154 Cognitively Intact n = 62 t df P
Age (years) 77.5 ± 8 73.1 ± 9 3.22 101 .002
Female 97 (63) 43 (69) - 1 .375*
Years of Education 13 ± 5 15 ± 4 3.11 129 .002
Race - 2 .337*
White 114 (74) 40 (65) - - -
Black 25 (16) 15 (24) - - -
Multi-racial 15(4) 7 (11) - - -
Ethnicity - 1 .379
Latino 18 (12) 10 (16) - - -
Non-Latino 136 (88) 53 (84) - - -
Mini-mental Status Exam 20.7 ± 4 28.8 ± 2 19.8 213 <.001
Geriatric Depression Scale 1 (0,13) 0 (0,6) - - .001
Cognitive Test Performance
Verbal Fluency 9 ± 4 20 ± 6 13.0 93 <.001
Boston Naming 12 ± 3 14 ± 1 10.6 210 <.001
Clock Drawing 4 ± 3 1 ± 1 10.8 209 <.001
Digit Symbol 27 ± 17 52 ± 13 11.1 147 <.001
Wordlist Memory 11 ± 5 22 ± 4 17.2 142 <.001
Wordlist Recognition 15 ± 3 20 ± 1 14.2 149 <.001
Wordlist Recall 2 ± 2 7 ± 2 20.2 116 <.001
Logical Memory 1 8 ± 6 25 ± 9 14.5 88 <.001
Logical Memory 2 2 ± 4 23 ± 9 16.2 71 <.001
Self Reported Distress, n (%) - 3 .002*
None 46 (30) 33 (53) - - -
Mild 46 (30) 18 (29) - - -
Moderate 35 (23) 10 (16) - - -
Severe 25 (17) 1 (2) - - -
Perceived Test Performance Compared to 10 Years Ago, n (%) - 1 .89*
Same or Better 60 (40) 25 (41) - - -
Worse 90 (60) 36 (59) - - -
Perceived Difficulty of Test, n (%) - 1 .11*
Very to Somewhat Easy 76 (51) 38 (63) - - -
Very to Somewhat Difficult 73 (49) 22 (37) - - -

Values are express as mean ± SD, frequency (percent), or median (upper bound, lower bound)

*

Pearson Chi Square

Fisher’s Exact Test

Wilcoxon Rank Sum Test

SD= standard deviation