Table 2.

 Relative risk of developing Alzheimer's disease and dementia associated with possible indicators of impairment

Indicator	No (%) of people	Relative risk* (95% CI)
Memory complaint	457/1417 (32)	2.0 (1.5 to 2.6)
Global cognitive impairment with no dementia	212/1435 (15)	3.6 (2.6 to 4.8)
Domain specific cognitive impairment:
Episodic/recall impairment	51/357 (14)	4.8 (2.7 to 8.5)
Verbal fluency impairment	53/357 (15)	3.8 (2.2 to 6.6)
Visuospatial impairment	60/360 (17)	2.1 (1.6 to 3.7)

^*Estimated by using Cox regression models with adjustment for age, education, and sex.