Table 2. Weighted Prevalence of Cognitive Impairment, by Racial/Ethnic Group, National Health Interview Survey,1997–2015.
| Year | Percentage |
|||||
|---|---|---|---|---|---|---|
| Non-Hispanic White | Non-Hispanic Black | Native Americana | Hispanic | Asian | Overall | |
| 1997 | 5.2 | 9.1 | NA | 9.3 | NA | 5.7 |
| 1998 | 5.0 | 8.0 | 6.5 | 6.2 | 7.4 | 5.4 |
| 1999 | 4.3 | 7.5 | 9.1 | 6.5 | 3.7 | 4.7 |
| 2000 | 5.0 | 10.2 | 12.7 | 7.3 | 9.4 | 5.6 |
| 2001 | 5.6 | 11.1 | 20.6 | 8.9 | 6.1 | 6.3 |
| 2002 | 6.0 | 8.6 | 20.6 | 7.5 | 14.7 | 6.5 |
| 2003 | 6.0 | 11.4 | 13.7 | 7.0 | 7.3 | 6.6 |
| 2004 | 5.9 | 8.3 | 7.6 | 8.1 | 7.6 | 6.3 |
| 2005 | 6.2 | 9.9 | 9.6 | 8.3 | 7.8 | 6.7 |
| 2006 | 5.7 | 9.8 | 13.5 | 7.5 | 6.2 | 6.2 |
| 2007 | 6.2 | 12.3 | 14.1 | 8.1 | 8.1 | 6.9 |
| 2008 | 5.3 | 9.1 | 10.3 | 6.1 | 7.0 | 5.8 |
| 2009 | 6.1 | 11.4 | 10.1 | 6.6 | 4.4 | 6.6 |
| 2010 | 6.0 | 8.4 | 11.4 | 8.4 | 5.6 | 6.4 |
| 2011 | 6.5 | 10.2 | 13.3 | 8.7 | 10.7 | 7.2 |
| 2012 | 5.8 | 9.5 | 15.3 | 9.3 | 6.1 | 6.5 |
| 2013 | 6.3 | 10.8 | 16.0 | 8.0 | 6.1 | 6.9 |
| 2014 | 6.2 | 9.7 | 16.9 | 8.9 | 5.0 | 6.8 |
| 2015 | 6.1 | 9.2 | 16.2 | 8.7 | 5.3 | 6.7 |
| P value for trend | <.001 | .30 | .27 | .15 | .28 | <.001 |
a
3-year average.