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*
, Ann C. Miller*, Robert Suruki*, Edward Corkren*, Sue Etkind*, Jeffrey Driscoll†, Michael McGarry†, and Edward Nardell*‡
, Ann C. Miller*, Robert Suruki*, Edward Corkren*, Sue Etkind*, Jeffrey Driscoll†, Michael McGarry†, and Edward Nardell*‡
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
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