Lead, Manganese, and Methylmercury as Risk Factors for Neurobehavioral Impairment in Advanced Age

Table 1

Age-specific incidence rates for Alzheimer’s disease. Mean estimates are the averages of the smoothed age-specific incidence curves from these studies [2].

Age, years	Estimate
60	0.08
65	0.17
70	0.35
75	0.71
80	1.44
85	2.92
90	5.95
95	12.10