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Volume 8, Number 11—November 2002
THEME ISSUE
Tuberculosis Genotyping

Tuberculosis Genotyping Network, United States

Genotyping Analyses of Tuberculosis Cases in U.S.- and Foreign-Born Massachusetts Residents

Sharon Sharnprapai*Comments to Author , Ann C. Miller*, Robert Suruki*, Edward Corkren*, Sue Etkind*, Jeffrey Driscoll†, Michael McGarry†, and Edward Nardell*‡
Author affiliations: *Massachusetts Department of Public Health, Boston, Massachusetts, USA; †New York State Department of Health, Wadsworth Center, Albany, New York, USA; ‡Harvard Medical School, Boston, Massachusetts, USA;

Main Article

Table 4

Molecular clustering of tuberculosis (TB) cases among foreign-born persons by time to TB diagnosis after arrival in the United States

Time to TB diagnosis
Cluster (%)
Nonclustered (%)
Odds ratio and 95% confidence interval (CI)
Chi square for trend a
<1 year of arrival 29 (16) 148 (84) 1.0 6.31 p =.012
1–5 years of arrival 38 (22) 139 (78) 1.40 (95% CI 0.79,2.47)
>5 years of arrival 86 (26) 244 (74) 1.80 (95% CI 1.10, 2.95)
Total 153 (22) 531 (78)

aStatistically significant trend for overall link based on country of origin was observed at p<0.05

Main Article

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