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

Statewide Molecular Epidemiology of Mycobacterium tuberculosis Transmission in a Moderate- to Low-Incidence State: Are Contact Investigations Enough?

Wendy A. Cronin*Comments to Author , Jonathan E. Golub*, Monica J. Lathan†, Leonard N. Mukasa*, Nancy Hooper*, Jafar H. Razeq*, Nancy G. Baruch*, Donna Mulcahy‡, William H. Benjamin§, Laurence S. Magder¶, G. Thomas Strickland¶, and William R. Bishai#
Author affiliations: *Maryland Department of Health and Mental Hygiene, Baltimore, Maryland, USA; †American Public Health Association, Washington, D.C., USA; ‡Alabama Department of Public Health, Montgomery, Alabama, USA; §University of Alabama at Birmingham, Birmingham, Alabama, USA; ¶University of Maryland—Baltimore, Maryland, USA; #The Johns Hopkins University, Baltimore, Maryland, USA;

Main Article

Table 2

Selected characteristics of culture-positive patients with comparison between categories

No. patients with recent TB (%)
(N=115)
No. patients with probable
recent TB (%)
(n=82)
No. patients with reactivated TB (%)
(n=788)
p value
p value
Characteristic Group A Group B Group C A vs. B A vs. C
Residence
Baltimore City 57 (50.0) 38 (46.3) 157 (19.9) 0.66 <0.001
Other state jurisdictions 58 (50.0) 44 (53.7) 631 (80.1)
Age group (yrs)
0–14a 6 (5.2) 3 (3.7) 5 (0.6) <0.001 <0.001
15–24 21 (18.3) 7 (8.5) 86 (10.9)
25–44 46 (40.0) 27 (32.9) 275 (34.9)
45–64 33 (28.7) 20 (24.3) 178 (22.6)
>65 9 (7.8) 25 (30.4) 244 (31.0)
Race/ethnicity
White, non-Hispanic 20 (17.4) 17 (20.7) 162 (20.6) 0.03 <0.001
Black, non-Hispanic 89 (77.4) 51 (62.2) 341 (43.3)
Hispanic 1 (0.9) 5 (6.1) 84 (10.7)
Asian 5 (4.3) 9 (11.0) 200 (25.4)
Native American 0 0 1 (0.1)
Country of birth
United States 105 (91.3) 66 (80.5) 360 (45.7) 0.03 <0.001
Other 10 (8.7) 16 (19.5) 428 (54.3)
Long-term care resident
Yes 7 (6.1) 5 (3.3) 25 (3.2) 1.00 0.11
No 108 (93.9) 77 (96.7) 763 (96.8)
Homeless
Yes 18 (15.7) 8 (9.8) 23 (2.9) 0.22 <0.001
No 97 (84.3) 74 (90.2) 765 (97.1)
Prison resident
Yes 13 (11.3) 10 (13.1) 21 (2.7) 0.85 <0.001
No 102 (88.7) 72 (86.9) 767 (97.3)
Uses illegal drugs or abuses alcohol
Yes 53 (46.0) 30 (36.6) 76 (9.6) 0.18 <0.001
No 62 (54.0) 58 (63.4) 712 (90.4)
HIV-infected
Yes 28 (24.3) 19 (23.2) 75 (9.5) 0.85 <0.001
No
87 (75.7)
63 (76.8)
713 (90.5)


aIncludes one child < 6 years old without a known source patient; the case was classified as recent based on age.

Main Article

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Page updated: July 19, 2010
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The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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