Table 1.

Summary of a cohort study on cognitive decline and AD dementia prevention effects after long-term ginseng intake.

Survey year	Number of participants	Age	Cognitive function assessment methods	Long-term ginseng intake or not	MCI or cognitive dysfunction rate (%)	Dementia incidence rate (%)	Reference
2012–2016	6422	>60	CERAD and MMSE	Did not take ginseng	32.6	4.6	[16]
				Have been taking ginseng for less than 5 years	27.1 (p < 0.001)	1.8
				Taking ginseng for more than 5 years	24.7 (p < 0.001)	0.5