Mortality risk factors for listeriosis - A 10 year review of non-pregnancy associated cases in England 2006-2015.

J Infect

Reference Microbiology Services, National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, United Kingdom; Gastrointestinal Infections Department, National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, United Kingdom. Electronic address:

Published: March 2019

Unlabelled: LISTERIOSIS: is a foodborne illness that can result in septicaemia, Central Nervous System (CNS) disease, foetal loss and death in high risk patients.

Objectives: To analyse the demographic trends, clinical features and treatment of non-perinatal listeriosis cases over a ten year period and identify mortality-associated risk factors.

Methods: Reported laboratory-confirmed non-pregnancy associated cases of listeriosis between 2006 and 2015 in England were included and retrospectively analysed. Multivariate logistic regression analysis was performed to determine independent risk factors for mortality.

Results: 1357/1683 reported cases met the inclusion criteria. Overall all-cause mortality was 28.7%; however, mortality rates declined from 42.1% to 20.2%. Septicaemia was the most common presentation 69.5%, followed by CNS involvement 22.4%. CNS presentations were significantly associated with age < 50 years, and septicaemia with older age. Age > 80 years (OR 3.32 95% CI 1.92-5.74), solid-organ malignancy (OR 3.42 95% CI 2.29-5.11), cardiovascular disease (OR 3.30 95% CI 1.64-6.63), liver disease (OR 4.61 95% CI 2.47-8.61), immunosuppression (OR 2.12 95% CI 1.40-3.21) and septicaemia (OR 1.60 95% CI 1.17-2.20) were identified as independent mortality risk factors.

Conclusions: High risk groups identified in this study should be the priority focus of future public health strategies aimed at reducing listeriosis incidence and mortality.

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http://dx.doi.org/10.1016/j.jinf.2018.11.007DOI Listing

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