Table 3.

Impact of Current Smoking and Follow-up time on Abstract/visuospatial Performance in Elderly Persons Stratified by Age Group.

	Model 1		Model 2
Variable	Estimated ß (SE)	p-value	Estimated ß (SE)	p-value
Persons ≤ 75 years old
Time	-0.7 (0.2)	0.001*	-0.7 (0.2)	0.001*
Current Smoking	1.2 (2.7)	0.7	0.2 (2.9)	0.9
Time*current smoking	0.1 (0.5)	0.9	0.1 (0.5)	0.9
Persons > 75 years old
Time	-0.9 (0.2)	0.002*	-1.0(0.2)	0.002*
Current Smoking	-7.4 (2.3)	0.001*	-7.9 (2.4)	0.001*
Time*current smoking	-0.5 (0.6)	0.4	-0.4 (0.5)	0.5

Model 1 is adjusted for age and gender, Model 2 is adjusted for age, gender, education, ethnic group and APOEε4, hypertension, heart disease and diabetes

^*significant at a 0.05 level