Table 1.

Results of the logistic model predicting probability of incident Alzheimer's disease: Chicago Health and Aging Project^*

Predictor	OR	95% CI	P value
Calendar year	0.97	0.90–1.04	.41
Age at evaluation (years)	1.12	1.08–1.16	<.001
Gender, Men	1.23	0.83–1.82	.29
Race/ethnicity, African-Americans	1.77	1.19–2.63	.005
Education (years)	0.94	0.89–1.00	.07
Interval for disease development†	0.91	0.76–1.09	.29

Abbreviations: OR, odds ratio; 95% CI, 95% confidence interval.

^*[36].

^†Time in years from the visit when last found to be disease-free to the visit when first diagnosed with Alzheimer's disease.