Table 3. Comparison of mean (sd) total and subscale scores on the Alzheimer's Disease Assessment Scale-Cognitive (ADAS-Cog) before and after 4 weeks of treatment in the study and control groups

scale/subscale	time	intervention group (n=26)	control group (n=26)	t-value F-valuea	p-value
total score	baseline	30.08 (6.07)	29.32 (6.31)	0.44	0.659
	after treatment	24.16 (5.21)	27.65 (5.24)	30.06	<0.001
	paired t-test (p-value)	13.10 (<0.001)	2.64 (0.014)
memory subscale score	baseline	14.39 (4.94)	14.28 (4.69)	0.08	0.936
	after treatment	10.70 (3.85)	12.89 (4.04)	13.06	0.001
	paired t-test (p-value)	12.45 (<0.001)	2.45 (0.022)
language subscale score	baseline	8.71 (3.27)	8.78 (3.13)	0.08	0.938
	after treatment	7.98 (3.19)	8.74 (3.25)	6.12	0.017
	paired t-test (p-value)	7.74 (<0.001)	0.12 (0.909)
constructional praxis	baseline	3.41 (1.68)	3.45 (1.66)	0.08	0.941
subscale score	after treatment	3.22 (1.61)	3.43 (1.64)	24.15	<0.001
	paired t-test (p-value)	5.78 (<0.001)	1.18 (0.250)
attention subscale score	baseline	3.57 (1.70)	2.81 (1.17)	1.88	0.068
	after treatment	2.27 (1.04)	2.57 (1.09)	7.62	0.008
	paired t-test (p-value)	3.48 (0.002)	2.29 (0.031)
aF-value is from the repeated measures ANOVA, adjusting for the baseline values of each variable