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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: JAMA Intern Med. 2017 Jan 1;177(1):51–58. doi: 10.1001/jamainternmed.2016.6807

Table 2.

Cognitive Function, Age 65+, 2000 and 2012 Cohorts

Cognitive Function 2000 (N=10,546) 2012* (N=10,511) 2012* (N=10,511)
Crude Rate Age- and Sex- Standardized Rate
Normal 6,966 (67.2)
(65.8–68.6)		 7,114 (72.4)
(71.1–73.6)		 7,114 (72.6)
(71.1–73.6)
CIND 2,293 (21.2)
(20.1–22.3)		 2,224 (18.8)
(17.8–19.9)		 2,224 (18.8)
(17.8–19.9)
Dementia 1,287 (11.6)
(10.7–12.7)		 1,173 (8.8)
(8.2–9.4)		 1,173 (8.6)
(8.2–9.4)

Values in parentheses are weighted percentages (and 95% confidence intervals) derived using the HRS sampling weights to adjust for the complex design of the HRS survey.

Column 3 shows the age- and sex-standardized weighted percentages, after direct standardization of the 2012 cohort to the 2000 cohort.

CIND is Cognitive Impairment—No Dementia.

*

P<0.001 for difference between 2000 and 2012.