Table 3. Perceptions of risk and protective factors for Alzheimer's disease.

Risk factors	Don't know % (n)	Not at all important % (n)	Somewhat important % (n)	Very important % (n)
Genetics	1.8 (44)	9.3 (173)	37.6 (632)	51.3 (786)
Stress	3.4 (50)	41.3 (599)	34.8 (575)	20.5 (410)
Protective factors	Don't know % (n)	Not at all effective % (n)	Somewhat effective % (n)	Very effective % (n)
Keeping mentally active	0.9 (21)	6.2 (115)	31.5 (472)	61.4 (1027)
Eating a healthy diet	1.3 (27)	11.4 (218)	43.0 (612)	44.3 (778)
Keeping physically active	1.1 (26)	11.1 (198)	47.2 (675)	40.6 (735)
Taking vitamins/dietary supplements	1.6 (37)	27.7 (451)	50.2 (769)	20.5 (378)

Note. Percentages are weighted; sample numbers (n) are not weighted. Six or seven data points are missing for all items.