Epidemiology of extrapulmonary and disseminated tuberculosis in a tertiary care center in Oman

Background: The incidence of extrapulmonary and disseminated tuberculosis (TB) cases is increasing worldwide, and this growth significantly impacts TB-related morbidity and mortality. Little is known about the host risk factors for extrapulmonary and disseminated TB. In this study, we examined those...

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Main Author: Zied Gaifer
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2017-01-01
Series:International Journal of Mycobacteriology
Subjects:
Online Access:http://www.ijmyco.org/article.asp?issn=2212-5531;year=2017;volume=6;issue=2;spage=162;epage=166;aulast=Gaifer
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author Zied Gaifer
author_facet Zied Gaifer
author_sort Zied Gaifer
collection DOAJ
description Background: The incidence of extrapulmonary and disseminated tuberculosis (TB) cases is increasing worldwide, and this growth significantly impacts TB-related morbidity and mortality. Little is known about the host risk factors for extrapulmonary and disseminated TB. In this study, we examined those risk factors. Materials and Methods: We conducted a retrospective review of all TB cases admitted to Sultan Qaboos University Hospital from 2006 to 2015. We compared extrapulmonary TB (EPTB) cases with pulmonary and disseminated TB cases. We evaluated the risk factors associated with the development of extrapulmonary and disseminated TB using logistic regression analysis. Results: We reviewed 260 TB cases, of which EPTB comprised 37%, PTB comprised 53%, and disseminated TB comprised 10%. The most common sites of infection in the EPTB group were the lymph nodes and the abdomen. Disseminated TB and TB meningitis were more common in expatriates than in Omanis. Patients with EPTB were less likely to smoke compared to a patient with PTB. Patients with disseminated TB had a higher mortality when compared to patients with EPTB (adjusted odds ratio [OR], 0.004; 95% confidence intervals [CI]: 0.001–0.054;P = 0.001) and PTB (adjusted OR, 0.022; 95% CI: 0.004–0.115;P = 0.001). Human immunodeficiency virus (HIV) was the main risk factor for patients with disseminated TB when compared to patients with extrapulmonary and PTB. Conclusion: The rates of extrapulmonary and disseminated TB in Oman are higher than what has been recognized. Expatriates, patients with HIV, and smokers are at high risk for disseminated TB. In these patients, suspected extrapulmonary sites should be evaluated and sampled to exclude disseminated TB.
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spelling doaj.art-58732719d8544ffeb2f0266a460eb07c2022-12-22T03:41:30ZengWolters Kluwer Medknow PublicationsInternational Journal of Mycobacteriology2212-55312212-554X2017-01-016216216610.4103/ijmy.ijmy_31_17Epidemiology of extrapulmonary and disseminated tuberculosis in a tertiary care center in OmanZied GaiferBackground: The incidence of extrapulmonary and disseminated tuberculosis (TB) cases is increasing worldwide, and this growth significantly impacts TB-related morbidity and mortality. Little is known about the host risk factors for extrapulmonary and disseminated TB. In this study, we examined those risk factors. Materials and Methods: We conducted a retrospective review of all TB cases admitted to Sultan Qaboos University Hospital from 2006 to 2015. We compared extrapulmonary TB (EPTB) cases with pulmonary and disseminated TB cases. We evaluated the risk factors associated with the development of extrapulmonary and disseminated TB using logistic regression analysis. Results: We reviewed 260 TB cases, of which EPTB comprised 37%, PTB comprised 53%, and disseminated TB comprised 10%. The most common sites of infection in the EPTB group were the lymph nodes and the abdomen. Disseminated TB and TB meningitis were more common in expatriates than in Omanis. Patients with EPTB were less likely to smoke compared to a patient with PTB. Patients with disseminated TB had a higher mortality when compared to patients with EPTB (adjusted odds ratio [OR], 0.004; 95% confidence intervals [CI]: 0.001–0.054;P = 0.001) and PTB (adjusted OR, 0.022; 95% CI: 0.004–0.115;P = 0.001). Human immunodeficiency virus (HIV) was the main risk factor for patients with disseminated TB when compared to patients with extrapulmonary and PTB. Conclusion: The rates of extrapulmonary and disseminated TB in Oman are higher than what has been recognized. Expatriates, patients with HIV, and smokers are at high risk for disseminated TB. In these patients, suspected extrapulmonary sites should be evaluated and sampled to exclude disseminated TB.http://www.ijmyco.org/article.asp?issn=2212-5531;year=2017;volume=6;issue=2;spage=162;epage=166;aulast=GaiferDisseminatedepidemiologyextrapulmonaryOmanpredictorstuberculosis
spellingShingle Zied Gaifer
Epidemiology of extrapulmonary and disseminated tuberculosis in a tertiary care center in Oman
International Journal of Mycobacteriology
Disseminated
epidemiology
extrapulmonary
Oman
predictors
tuberculosis
title Epidemiology of extrapulmonary and disseminated tuberculosis in a tertiary care center in Oman
title_full Epidemiology of extrapulmonary and disseminated tuberculosis in a tertiary care center in Oman
title_fullStr Epidemiology of extrapulmonary and disseminated tuberculosis in a tertiary care center in Oman
title_full_unstemmed Epidemiology of extrapulmonary and disseminated tuberculosis in a tertiary care center in Oman
title_short Epidemiology of extrapulmonary and disseminated tuberculosis in a tertiary care center in Oman
title_sort epidemiology of extrapulmonary and disseminated tuberculosis in a tertiary care center in oman
topic Disseminated
epidemiology
extrapulmonary
Oman
predictors
tuberculosis
url http://www.ijmyco.org/article.asp?issn=2212-5531;year=2017;volume=6;issue=2;spage=162;epage=166;aulast=Gaifer
work_keys_str_mv AT ziedgaifer epidemiologyofextrapulmonaryanddisseminatedtuberculosisinatertiarycarecenterinoman