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Table 2 An example where performance falls in normal or impaired range depending on demographic adjustment/model used

From: A web-based normative calculator for the uniform data set (UDS) neuropsychological test battery

Sex

(M = 1; F = 2)

1

          

Age

60

Sex, age, & education

Sex only

Age only

Education only

No adjustment

Education

20

          
  

Z Score

Percentile

Z Score

Percentile

Z Score

Percentile

Z Score

Percentile

Z Score

Percentile

MMSE

27

-2.087

1.84

-1.306

9.59

-1.758

3.94

-2.052

2.01

-1.538

6.20

Logical Memory A: Immediate

7

-2.162

1.53

-1.614

5.33

-1.887

2.96

-1.033

15.09

-1.769

3.84

Logical Memory A: Delayed

4

-2.404

0.81

-1.826

3.39

-2.116

1.72

-2.481

0.65

-2.000

2.28

Length of Delay

(25-35 min)

25

          

Digit Span Forward

6

-1.860

3.14

-1.333

9.12

-1.432

7.61

-1.706

4.40

-1.238

10.78

Digit Span Forward: Length

5

-2.089

1.84

-1.642

5.03

-1.701

4.44

-1.966

2.46

-1.545

6.11

Digit Span Backward

4

-1.910

2.81

-1.308

9.54

-1.511

6.54

-1.834

3.33

-1.318

9.37

Digit Span Backward: Length

3

-2.160

1.54

-1.576

5.75

-1.772

3.82

-2.072

1.91

-1.667

4.78

Category Fluency: Animals

9

-2.928

0.17

-1.989

2.33

-2.357

0.92

-2.565

0.52

-1.964

2.47

Category Fluency: Vegetables

7

-2.051

2.01

-1.391

8.20

-2.119

1.71

-2.031

2.11

-1.750

4.01

Trails A

29

-0.461

32.25

0.349

63.66

-0.131

44.78

0.017

50.67

0.364

64.19

Trails B

84

-0.887

18.76

0.065

52.60

-0.360

35.93

-0.380

35.21

0.126

55.01

WAIS-Digit Symbol

52

-0.484

31.43

0.559

71.19

-0.231

40.88

-0.057

47.74

0.400

65.54

Boston Naming Test (30 odd)

25

-1.590

5.59

-0.843

19.96

-0.916

17.99

-1.251

10.54

-0.688

24.59

  1. MMSE, Mini-Mental State Examination; WAIS, Wechsler Adult Intelligence Scale.
  2. Severely impaired = < 1%, Moderately impaired = 1% to 1.99%, Mildly impaired = 2% to 8.99%, Low average = 9% to 24.99%, Average = 25% to 74.99%, High average = 75% to 90.99, Superior = 91% to 97.99%, Very superior = 98%<