Table 3.

Multivariate analyses (Mixed models) of scores for the no-memory domain (score 0-24) as a function of the number of teeth and other variables from Wave 1 through Wave 3.

	Model 1		Model 2	Model 3	Model 4
Predictor Variable	Estimate ± SE		Estimate ± SE	Estimate ± SE	Estimate ± SE
Intercept	28.01 ± 0.79 a		24.68 ± 0.73 a	28.09 ± 0.79 a	24.77 ± 0.73 a
Time (years)	−0.38 ± 0.02 a		−0.31 ± 0.02 a	−0.44 ± 0.03 a	−0.38 ± 0.03 a
Number of teeth
0-12	−0.47 ± 0.13 b		−0.29 ± 0.11 d	−0.33 ± 0.14 d	−0.15 ± 0.12
13-32	0,00		0,00	0,00	0,00
Number of teeth/time interaction
0-12 teeth/time	-	-		−0.12 ± 0.04 c	−0.12 ± 0.04 c
13-32 teeth/time	-	-		0,00	0,00

^ap <0.0001,

^bp <0.001,

^cp <0.01, and

^dp <0.05

Estimate= the estimated change in the no-memory score (a negative sign indicates a decrease); SE= standard error of estimate. Variable time tests the slope of decline on no-memory scores over time. The term for the interaction between number of teeth and time represents the longitudinal effect of the baseline measure of number of teeth on the annual rate of change in the performance of no-memory scores. Models 1 and 3 adjust for socio-demographics; Models 2 and 4 has additional adjustments for medical conditions.