Table 2. Comparison of mean (sd) total and subscale scores on the Behavioral Pathology in Alzheimer's Disease Rating Scale (BEHAVE-AD) 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	14.00 (5.69)	14.12 (5.08)	0.08	0.939
	after treatment	9.08 (4.27)	11.96 (4.18)	26.34	< 0.001
	paired t-test (p-value)	12.82 (<0.001)	5.68 (<0.001)
delusions and paranoid	baseline	3.69 (1.46)	3.73 (1.48)	0.09	0.925
ideations subscale score	after treatment	3.08 (1.23)	3.12 (1.21)	0.00	1.000
	paired t-test (p-value)	6.33 (<0.001)	4.92 (<0.001)
hallucinations	baseline	0.23 (0.59)	0.27 (0.67)	0.22	0.826
subscale score	after treatment	0.12 (0.33)	0.17 (0.42)	0.05	0.821
	paired t-test (p-value)	1.81 (0.083)	1.73 (0.096)
activity disturbances	baseline	3.92 (1.74)	4.19 (1.55)	0.59	0.559
subscale score	after treatment	2.19 (1.90)	3.46 (1.56)	12.94	0.001
	paired t-test (p-value)	12.18 (<0.001)	3.06 (0.005)
aggressiveness	baseline	2.38 (2.00)	2.23 (1.80)	0.29	0.772
subscale score	after treatment	1.50 (1.48)	1.88 (1.53)	5.79	0.020
	paired t-test (p-value)	4.54 (<0.001)	3.14 (0.004)
diurnal rhythm disturbances	baseline	1.50 (0.51)	1.46 (0.51)	0.27	0.786
subscale score	after treatment	0.88 (0.65)	1.31 (0.62)	14.52	< 0.001
	paired t-test (p-value)	6.33 (<0.001)	2.13 (0.043)
affective disturbances	baseline	1.12 (0.71)	1.15 (0.73)	0.19	0.848
subscale score	after treatment	0.69 (0.47)	1.12 (0.71)	8.50	0.005
	paired t-test (p-value)	4.28 (<0.001)	0.44 (0.664)
anxiety and fear	baseline	1.15 (0.67)	1.08 (0.63)	0.43	0.672
subscale score	after treatment	0.62 (0.50)	0.92 (0.56)	5.39	0.024
	paired t-test (p-value)	4.24 (<0.001)	1.44 (0.161)
aF-value is from the repeated measures ANOVA, adjusting for the baseline values of each variable