Disparities in severe shigellosis among adults — Foodborne diseases active surveillance network, 2002–2014

Abstract Background Shigella causes approximately 500,000 illnesses, 6000 hospitalizations, and 40 deaths in the United States annually, but incidence and populations at risk for severe shigellosis among adults are unclear. This study describes severe shigellosis among US adults. Methods We analyzed...

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Main Authors: Lindsey S. McCrickard, Stacy M. Crim, Sunkyung Kim, Anna Bowen
Format: Article
Language:English
Published: BMC 2018-02-01
Series:BMC Public Health
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12889-018-5115-4
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author Lindsey S. McCrickard
Stacy M. Crim
Sunkyung Kim
Anna Bowen
author_facet Lindsey S. McCrickard
Stacy M. Crim
Sunkyung Kim
Anna Bowen
author_sort Lindsey S. McCrickard
collection DOAJ
description Abstract Background Shigella causes approximately 500,000 illnesses, 6000 hospitalizations, and 40 deaths in the United States annually, but incidence and populations at risk for severe shigellosis among adults are unclear. This study describes severe shigellosis among US adults. Methods We analyzed Foodborne Diseases Active Surveillance Network data for infections caused by Shigella among adults ≥18 years old during 2002–2014. Criteria to define severe shigellosis included hospitalization, bacteremia, or death. We estimated annual incidence of shigellosis per 100,000 among adult populations, and conducted multivariable mixed-effects logistic regression to assess associations between severe shigellosis, demographic factors and Shigella species among adults with shigellosis. Results Among 9968 shigellosis cases, 2764 (28%) were severe. Restricting to cases due to S. sonnei and S. flexneri, median annual incidence of severe shigellosis among adults was 0.56 and highest overall incidence was among black males 18–49 years old (1.58). Among adults with shigellosis, odds of severe disease were higher among males than females aged 18–49 years old (OR [95% CI] = 1.32 [1.15–1.52], p < 0.001) and among males than females with S. flexneri infections (OR [95% CI] =1.39 [1.10–1.75], p = 0.005). The odds of severe shigellosis were higher among blacks than whites (OR [95% CI] = 1.36 [1.22–1.52], p < 0.001). Conclusions Among adults, men 18–49 years old, particularly blacks, have the highest incidence of severe shigellosis. Among adults with shigellosis, severe shigellosis was associated with being male in age group 18–49 years, with infections caused by S. flexneri, and with black race. Future research should assess associations between severe shigellosis and sexual practices, antimicrobial resistance, comorbidities, and access to care.
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spelling doaj.art-7df5fa5383f94510bda4ee5e46d6c94f2022-12-22T01:31:53ZengBMCBMC Public Health1471-24582018-02-011811810.1186/s12889-018-5115-4Disparities in severe shigellosis among adults — Foodborne diseases active surveillance network, 2002–2014Lindsey S. McCrickard0Stacy M. Crim1Sunkyung Kim2Anna Bowen3Division of Foodborne, Waterborne and Environmental Diseases, Centers for Disease Control and PreventionDivision of Foodborne, Waterborne and Environmental Diseases, Centers for Disease Control and PreventionDivision of Foodborne, Waterborne and Environmental Diseases, Centers for Disease Control and PreventionDivision of Foodborne, Waterborne and Environmental Diseases, Centers for Disease Control and PreventionAbstract Background Shigella causes approximately 500,000 illnesses, 6000 hospitalizations, and 40 deaths in the United States annually, but incidence and populations at risk for severe shigellosis among adults are unclear. This study describes severe shigellosis among US adults. Methods We analyzed Foodborne Diseases Active Surveillance Network data for infections caused by Shigella among adults ≥18 years old during 2002–2014. Criteria to define severe shigellosis included hospitalization, bacteremia, or death. We estimated annual incidence of shigellosis per 100,000 among adult populations, and conducted multivariable mixed-effects logistic regression to assess associations between severe shigellosis, demographic factors and Shigella species among adults with shigellosis. Results Among 9968 shigellosis cases, 2764 (28%) were severe. Restricting to cases due to S. sonnei and S. flexneri, median annual incidence of severe shigellosis among adults was 0.56 and highest overall incidence was among black males 18–49 years old (1.58). Among adults with shigellosis, odds of severe disease were higher among males than females aged 18–49 years old (OR [95% CI] = 1.32 [1.15–1.52], p < 0.001) and among males than females with S. flexneri infections (OR [95% CI] =1.39 [1.10–1.75], p = 0.005). The odds of severe shigellosis were higher among blacks than whites (OR [95% CI] = 1.36 [1.22–1.52], p < 0.001). Conclusions Among adults, men 18–49 years old, particularly blacks, have the highest incidence of severe shigellosis. Among adults with shigellosis, severe shigellosis was associated with being male in age group 18–49 years, with infections caused by S. flexneri, and with black race. Future research should assess associations between severe shigellosis and sexual practices, antimicrobial resistance, comorbidities, and access to care.http://link.springer.com/article/10.1186/s12889-018-5115-4ShigellosisEpidemiologyAdultMSM
spellingShingle Lindsey S. McCrickard
Stacy M. Crim
Sunkyung Kim
Anna Bowen
Disparities in severe shigellosis among adults — Foodborne diseases active surveillance network, 2002–2014
BMC Public Health
Shigellosis
Epidemiology
Adult
MSM
title Disparities in severe shigellosis among adults — Foodborne diseases active surveillance network, 2002–2014
title_full Disparities in severe shigellosis among adults — Foodborne diseases active surveillance network, 2002–2014
title_fullStr Disparities in severe shigellosis among adults — Foodborne diseases active surveillance network, 2002–2014
title_full_unstemmed Disparities in severe shigellosis among adults — Foodborne diseases active surveillance network, 2002–2014
title_short Disparities in severe shigellosis among adults — Foodborne diseases active surveillance network, 2002–2014
title_sort disparities in severe shigellosis among adults foodborne diseases active surveillance network 2002 2014
topic Shigellosis
Epidemiology
Adult
MSM
url http://link.springer.com/article/10.1186/s12889-018-5115-4
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