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. Author manuscript; available in PMC: 2013 Dec 12.
Published in final edited form as: JAMA. 2012 Dec 12;308(22):10.1001/jama.2012.85685. doi: 10.1001/jama.2012.85685

Table 5.

Prevalence of Diabetes Diagnosed 10 or More Years Ago Among US Adults Aged 20 Years and Older by Age and Race/Ethnicitya

1999-2002 2005-2008
Participants,
No.
Prevalence,
% (95% CI)b
Participants,
No.
Prevalence,
% (95% CI)b
P
Value
Overall 2422 2.8 (2.4-3.2) 3031 3.6 (3.0-4.2) .02
 White non-hispanic 922 2.5 (2.1-3.0) 1187 3.4 (2.6-4.2) .07
 Black non-Hispanic 652 4.3 (3.4-5.2) 981 6.0 (4.9-7.1) .02
 Mexican American 631 2.3 (1.8-2.8) 520 3.1 (2.5-3.8) .04
Aged 20 to 39 years 64 0.3 (0.1-0.5) 135 0.7 (0.4-1.0) .03
 White non-Hispanic 29 0.3 (0-0.5) 60 0.7 (0.3-1.1) <.001
 Black non-Hispanic 25 0.8 (0-1.7) 40 1.0 (0.4-1.7) .65
 Mexican American 5 0 (0-0.3) 25 0.5 (0-1.0) .16
Aged 40 to 59 years 436 2.4 (1.9-2.9) 736 3.2 (2.5-3.9) .06
 White non-Hispanic 120 1.8 (1.1-2.4) 262 2.7 (1.7-3.6) .10
 Black non-Hispanic 115 3.7 (2.2-5.3) 240 5.7 (4.0-7.3) .08
 Mexican American 121 3.5 (2.3-4.6) 134 4.2 (2.8-5.6) .07
Aged 60 years and older 1922 8.6 (7.5-9.8) 2124 9.0 (7.2-10.7) .72
 White non-Hispanic 773 7.3 (6.2-8.5) 865 7.6 (5.6-9.6) .80
 Black non-Hispanic 512 16.3 (13.0-19.7) 701 18.6 (15.3-22.0) .12
 Mexican American 505 13.9 (11.1-16.7) 361 14.4 (10.1-18.8) .38
a

“Other” race/ethnicity is not reported because of small numbers.

b

Percentage values are weighted according to the US 2000 Census, whereas numbers of participants are unweighted.