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Table 2 Number of errors for each scent among controls, Alzheimer’s disease (AD) and other causes of cognitive impairment

From: Olfactory testing in consecutive patients referred with suspected dementia

 

Cuisine Studya

Blinded Studyb

ADc

Controls

p-valued

ADc

non-ADc

p-valued

n (%)

n (%)

 

n (%)

n (%)

 

Citrus

14 (70)

4 (20)

<0.01

15 (62)

10 (38)

ns

Lilac

10 (50)

9 (45)

ns

15 (62)

15 (58)

ns

Smoke

12 (60)

0 (0)

<0.001

9 (37)

8 (31)

ns

Peanut

12 (60)

5 (25)

<0.05

13 (54)

10 (38)

ns

Menthol

11 (55)

1 (5)

<0.001

16 (67)

13 (50)

ns

Paint thinner

12 (60)

0 (0)

<0.001

18 (75)

8 (31)

<0.01

  1. aComparing patients with probable Alzheimer’s disease and helathy controls.
  2. bstudy of consecutive patients referred for suspected dementiat with the results of test of olfactory function blinded to the diagnosis
  3. cAlzheimer’s disease
  4. dChi-squared test or Fishers exact test when n < 5
  5. ns p-value >0.05