Table 2.

Baseline and 2-year follow-up cognitive performance scores on nondemented subjects in longitudinal study

	Subject groups
	With APOE-4 (n = 10)	Without APOE-4 (n = 10)
Mini-mental state exam
Baseline	28.0  ± 1.3	29.0  ± 1.3
Follow-up	28.0  ± 2.1	28.7  ± 1.3
Delayed paragraph recall
Baseline	14.7  ± 6.6	18.4  ± 4.3
Follow-up	13.6  ± 7.5	20.2  ± 8.3
Buschke-Fuld total recall*
Baseline	87.9  ± 14.0	95.2  ± 20.9
Follow-up	70.4  ± 29.4	94.2  ± 21.5
Benton visual errors
Baseline	4.7  ± 2.6	6.1  ± 3.1
Follow-up	5.4  ± 3.7	3.8  ± 2.1

An ANCOVA model using follow-up scores as outcomes and baseline scores as covariates yielded no significant difference between groups in any of the measures. Values are reported as mean ± SD or number (percent). 

^*Baseline vs. follow-up for APOE-4 carriers: t = 2.5, df = 9, P = 0.036 (uncorrected).