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Volume 9, Number 11—November 2003

Synopsis

Toxoplasma gondii Infection in the United States, 1999–2000

Jeffrey L. Jones*Comments to Author , Deanna Kruszon-Moran†, and Marianna Wilson*
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA; †National Center for Health Statistics, Centers for Disease Control and Prevention, Hyattsville, Maryland, USA

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Table

Comparison of Toxoplasma gondii immunoglobulin G antibody seroprevalence in NHANES 1999–2000 and NHANES III (1988–1994)a,b,c

NHANES 1999–2000 NHANES III

Nd
Prevalence
95% CL
Nd
Prevalence
95% CL
Total
4,234
15.8
13.5, 18.1
11,132
16.0
14.5, 17.5
Sex






Male
2,013
16.7
13.6, 19.9
5,144
16.7
14.8, 18.6
Female
2,221
14.9
12.5, 17.4
5,988
15.3
13.5, 17.0
Race/ethnicity






Non-Hispanic white
1,293
12.1
9.9, 14.4
3,304
14.3
12.5, 16.2
Non-Hispanic black
1,027
19.2
14.8, 23.6
3,674
18.0
16.1, 19.8
Mexican American
1,553
16.8
12.4, 21.1
3,661
18.3
16.7, 20.0
Age group






12–19
2,105
9.3
6.4, 12.1
2,749
8.5
6.4, 10.5
20–29
735
13.4
10.1, 16.7
3,100
15.2
12.1, 18.3
30–39
726
18.1
14.7, 21.5
2,960
16.1
14.6, 17.6
40–49
668
20.4
15.7, 25.0
2,323
22.2
19.4, 25.0
Country of birth






United States
3,211
12.2
10.0, 14.3
8,606
14.1
12.7, 15.5
Non-U.S. 995 32.8 27.3, 38.3 2,493 27.9 24.1, 31.7

aNHANES, National Health and Examination Survey.
bSex, race/ethnicity, and total values are age-adjusted to the 2000 census estimated population, using the four age categories shown in the table.
cNo statistically significant differences (p>0.05, t-statistic) existed between NHANES 1999–2000 and NHANES III across any subgroup in the table.
dTotals for the race/ethnicity or country of birth categories do not add up to the total number because of an “other” category for race/ethnicity (not shown) or because persons did not provide a response to country of birth questions.

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