Table 1.

Comparison of group means and proportions between MCI, SCI, and AD for clinical variables

	MCI	p	SCI	p	AD
Age, years	64.2	<0.001	57.8	<0.001	70.1
Female	53.9	0.003	64.2	0.893	63.6
Years of education	12.0	<0.001	13.3	<0.001	10.9
Symptom duration, years	3.5	0.390	3.3	0.074	2.9
Family history of dementia	34.0	<0.001	48.6	0.004	36.1
Hyperlipidemia	29.8	<0.001	18.3	0.008	27.8
Diabetes	13.4	<0.001	5.3	0.122	8.6
Hypertension	42.2	<0.001	25.2	<0.001	46.2
Heart disease	19.6	<0.001	7.8	<0.001	19.2
Stroke/TIA	39.4	0.057	23.8	0.682	28.0
Parkinsonism	21.1	0.018	5.6	0.925	5.0
Allergies	8.3	0.088	12.0	0.049	6.7
Rheumatoid arthritis	0.8	0.430	1.5	0.34	0.6
NSAIDs	7.7	0.142	10.8	<0.001	2.2
Non-NSAIDs	9.7	0.122	13.3	<0.001	3.3
Steroids	5.9	0.052	9.8	0.965	9.9
ASA treatment	21.8	0.002	13.7	0.001	24.7
Antidepressants	29.6	0.511	31.7	<0.001	17.1
Neuroleptics	2.2	0.943	2.1	0.650	2.7
Vitamin B12 supplements	12.6	0.476	11.0	0.038	17.1
Treatment for thyroid conditions	8.1	0.081	11.8	0.013	5.4

Results are proportions, indicated as percentages, unless indicated otherwise. AD and MCI group means and proportions were compared to SCI. p values correspond to χ² tests or binary logistic regression, as appropriate. TIA = Transient ischemic attack; NSAIDs = non-steroidal anti-inflammatory drugs; ASA = acetylsalicylic acid.