We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Article |

Isoniazid Preventive Therapy in Human Immunodeficiency Virus-Infected Persons Long-term Effect on Development of Tuberculosis and Survival

Santiago Moreno, MD; Pilar Miralles, MD; Maria D. Diaz, MD; Josu Baraia, MD; Belén Padilla, MD; Juan Berenguer, MD; Juan C. Alberdi, MD
Arch Intern Med. 1997;157(15):1729-1734. doi:10.1001/archinte.1997.00440360155017.
Text Size: A A A
Published online


Background:  Although the short-term benefit of isoniazid prophylaxis in patients coinfected with human immunodeficiency virus (HIV) and tuberculosis has been shown, long-term benefits are unknown.

Methods:  Historical cohort study in an acquired immunodeficiency syndrome unit at a tertiary referral hospital. A sample of 121 HIV-infected patients with positive results on a purified protein derivative test were followed up for development of active tuberculosis and survival. Patients who received isoniazid prophylaxis were compared with patients who did not receive prophylaxis.

Results:  Of the 121 patients examined, 29 (24%) completed a 9- to 12-month course of isoniazid prophylaxis (median follow-up, 89 months), and 92 (76%) did not receive the drug (median follow-up, 60 months). Active tuberculosis developed in 46 patients (38%). The incidence of tuberculosis was higher among patients with no prophylaxis (9.4 per 100 patient-years) than among patients with isoniazid prophylaxis (1.6 per 100 patient-years) (P=.006). Risk for development of tuberculosis was associated with the absence of isoniazid prophylaxis (relative risk [RR], 6.55; 95% confidence interval [CI], 2.02-21.19). Death during the period of study was more frequent in patients who did not receive isoniazid (50/92 or 54%) than in patients who received isoniazid (7/29 or 24%) (P=.008). Median survival was more than 111 months in patients who received isoniazid compared with 75 months in patients who did not receive isoniazid (P<.001). In a proportional hazards analysis, the development of tuberculosis (RR, 1.88; 95% CI, 1.09-3.27), the absence of isoniazid prophylaxis (RR, 2.68; 95% CI, 1.16-6.17), and a CD4+ cell count lower than 0.20×109/L (RR, 3.03; 95%CI, 1.39-6.61) were independently associated with death. Patients who received isoniazid had a longer survival after stratifying for the CD4+ cell count.

Conclusions:  Preventive therapy with isoniazid confers long-term protection against tuberculosis and significantly increases survival in patients dually infected with HIV and Mycobacterium tuberculosis.Arch Intern Med. 1997;157:1729-1734


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?





Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

43 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.