Table 2.

Score of Alzheimer’s disease (AD) preventive behaviors related to drugs according to the intention and prior experience.

	Score range	Total (n = 147)	AD-preventive behaviors related to medicines
			Intention to take AD-preventive medicines			Experience of taking Gingko biloba or similar medicines
			Yes (n = 139)	No (n = 8)	P value	Yes (n = 68)	No (n = 79)	P value
HBM variables
Total score	30-150	106.6 (11.0)	107.2 (10.7)	97.1 (12.0)	.012†	108.7 (10.8)	104.8 (10.8)	.029†
Perceived susceptibility	4-20	12.9 (3.6)	13.0 (3.5)	10.6 (3.7)	.068†	13.7 (3.5)	12.2 (3.5)	.010†
Perceived severity	4-20	15.7 (2.8)	15.7 (2.7)	14.3 (3.3)	.142†	16.0 (2.8)	15.3 (2.8)	.143†
Perceived benefits	4-20	16.5 (2.4)	16.5 (2.4)	15.5 (2.5)	.247†	16.8 (2.4)	16.2 (2.5)	.172†
Perceived barriers	11-55	34.9 (6.4)	34.9(6.5)	34.6 (4.2)	.914†	34.6 (6.6)	35.1 (6.3)	.630†
Self-efficacy	7-35	26.8 (4.5)	27.0 (4.4)	22.1 (4.8)	.003†	27.7 (4.4)	26.0 (4.5)	.020†
Cue to action	5-25	12.7 (3.4)	12.8 (3.5)	10.8 (2.0)	.096†	13.8 (3.7)	11.8 (3.0)	.000†
Non-HBM variables
Knowledge of dementia	0-12	9.7 (1.3)	9.7 (1.2)	8.13 (1.4)	.001†	9.7 (1.2)	9.6 (1.3)	.518†

Values are presented as mean (SD).

^†t test

AD = Alzheimer’s disease, HBM = health belief model, MCI = mild cognitive impairment, SD = standard deviation.