Table 2.

Age-adjusted AD mortality rates over time

Time	Average age-adjusted	Average change in age-	p-value	n
period	mortality (95% CI)	adjusted mortality (95% CI)
2000–2006	26.2 (24.5, 27.9)	7.2 (5.5, 8.8)	<0.0001	155
2009–2015	33.4 (31.6, 35.2)

Average age-adjusted mortality rates represent the average AD mortality rates across all counties with reliable data; p-value represents the results from a paired t-test examining the change in age-adjusted mortality rates; n represents the number of pairs examined or the number of counties with reliable age-adjusted mortality rates in both time periods examined.