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Int J Tuberc Lung Dis. 2006 Jul;10(7):775-82.

A randomized controlled trial of two treatment programs for homeless adults with latent tuberculosis infection.

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  • 1School of Nursing, University of California-Los Angeles, Room 2-250, Factor Building, Box 951720, Los Angeles, CA 90095-1702, USA.



Few studies have examined strategies for optimizing adherence to latent tuberculosis infection (LTBI) treatment programs in homeless populations.


1) To compare the effectiveness of an intervention program employing nurse case management and incentives (NCMI) vs. a control program with standard care and incentives on completion of LTBI treatment; and 2) to compare the impact of the two programs on tuberculosis (TB) knowledge among participants.


A prospective, two-group site-randomized design conducted among 520 homeless adults residing in the Skid Row region of Los Angeles from 1998 to 2003, assessing completion rates of a 6-month isoniazid (INH) treatment program and change in TB knowledge.


Using intent-to-treat analysis, 62% of participants in the intervention program, compared with 39% of controls, completed the full 6-month course of LTBI treatment with INH. Logistic regression modeling revealed that intervention participants had three times greater odds of completing INH treatment than controls. TB knowledge improved in both programs, but the increase was greater among the intervention participants (P < 0.001).


Nurse case management combined with education, incentives, and tracking dramatically improves both adherence to LTBI treatment and TB knowledge in homeless persons compared to a standard approach of outreach and incentives.

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