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

Tuberculosis Genotyping Network, United States

Cross-Jurisdictional Transmission of Mycobacterium tuberculosis in Maryland and Washington, D.C., 1996–2000, Linked to the Homeless

Monica Lathan*†, Leonard Ntaate Mukasa*, Nancy Hooper*, Jonathan Golub*, Nancy Baruch*, Donna Mulcahy‡, William Benjamin§, and Wendy A. Cronin*Comments to Author 
Author affiliations: *Maryland Department of Health and Mental Hygiene, Baltimore, Maryland, USA; †American Public Health Association, Washington, D.C., USA; ‡Alabama Department of Health, Montgomery, Alabama, USA; §University of Alabama at Birmingham, Birmingham, Alabama, USA;

Main Article

Table

Selected characteristics among homeless and nonhomeless clustered tuberculosis case-patients, Maryland and Washington, D.C.a,b

Characteristics Homeless
No. (%) Non-homeless
No. (%) p valuec
Gender
Male 13 (92.8) 4 (44.4) 0.02
Female 1(7.2) 5 (55.6)
Median age in years (range) 42 (27–57) 40 (23–61) 0.97
Substance abuse (IV or non-IV)
Yes 5 (35.7) 0 (0.0)
No 9 (64.3) 9 (100.0) 0.11
Alcohol abuse
Yes 9 (64.3) 3 (33.3) 0.21
No 5 (35.7) 6(66.7)
HIV status
Positive 8 (57.1) 1 (11.1) 0.16
Negative 6 (42.9) 6 (66.7)
Unknown 0 (0.0) 2 (22.2)
Smear for AFB
Positive 14 (100.0) 6 (66.7)3 0.05
Negative 0 (0.0) (33.3)
Pulmonary cavities
Present 7 (50.0) 5 (55.6) 1.00
Absent 7 (50.0) 4 (44.4)
Mental illness
Yes 4 (28.6) 1 (11.1) 0.61
No 10 (71.4) 8 (88.9)
Died
Yes 4 (28.6) 1 (11.1) 0.61
No 10 (71.4) 8 (88.9)

aNA, not applicable; AFB, acid-fast bacilli.
bWashington, D.C., cases were preselected on the basis of a homeless history except for case in the nurse.
cFisher exact tests were used to compare demographic and clinical characteristics between the homeless and nonhomeless groups.

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