Table 2.

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

	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

^aComparing patients with probable Alzheimer’s disease and helathy controls.

^bstudy of consecutive patients referred for suspected dementiat with the results of test of olfactory function blinded to the diagnosis

^cAlzheimer’s disease

^dChi-squared test or Fishers exact test when n < 5

ns p-value >0.05