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Study links deprivation with risk of dying from sepsis

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The most socioeconomically deprived groups in society are nearly twice as likely to die from sepsis within 30 days, researchers from The University of Manchester have found.

The study of NHS data analyzed 248,767 cases of non-COVID-19 from January 2019 to June 2022 matched with 1,346,166 controls. The results were published Nov. 23 in the journal eClinicalMedicine.

It also revealed that people with learning disabilities were almost four times as likely to develop the life-threatening illness.

People with were just over three times as likely, and chronic kidney disease stage 5 was over six times more likely to develop non-COVID-19 sepsis.

Cancer, neurological disease, immunosuppressive conditions, and having multiple prior courses of antibiotics were also associated with developing non-COVID-19 sepsis.

Sepsis develops when the body's immune system overreacts to an infection and starts attacking its own tissues and organs. It accounts for a significant proportion of global mortality each year.

Symptoms can be similar to those of flu and include severe breathlessness and a high fever. About 80% of cases are believed to develop outside hospitals in the U.K.

It is the first to analyze fluctuations in the incidence of non-COVID-19 sepsis before, during, and after the COVID-19 pandemic within a large population.

Also according to the study, the incidence rate of non-COVID-19 sepsis decreased during the COVID-19 pandemic which, say the authors, could be attributable to lower risks of non-COVID-19 infections due to reduced social mixing, and changes in health care delivery.

The figures, however, rebounded to pre-pandemic levels in April 2021 after national lockdowns had been lifted.

Co-author Professor Tjeerd van Staa from The University of Manchester said, "This study shows , comorbidity and learning disabilities are associated with an increased risk of developing non-COVID-19 related sepsis and 30-day mortality in England.

"We think the research provides comprehensive data and findings of relevance to health care systems worldwide.

"It underscores the urgent need for sepsis risk prediction models to account for chronic disease status, deprivation status, and learning disabilities, along with infection severity.

"Sepsis remains a global issue of significant concern so understanding its clinical and health inequality risk factors is essential to understanding at-risk cohorts and effective public health mitigations.

"There is an urgent need to improve the prevention of sepsis, including more precise targeting of antimicrobials to higher-risk patients."

Co-author Xiaomin Zhong, a Ph.D. researcher at The University of Manchester, said, "We're not sure why exposure to multiple courses of antibiotics increases patients' risk of sepsis

"But it's reasonable to speculate that the adverse effects of antibiotics on the beneficial bacteria in the gut could lead to increased susceptibility to infection. It could also be down to underlying differences in immune status or comorbidities.

"Given the potential adverse effects of repeated antibiotic courses, there is a need to target antibiotics to those patients who would most need and benefit from them."

Professor van Staa added, "By harnessing this knowledge, health care systems can be better equipped to face potential future pandemics or global health crises, ensuring that are not disproportionately affected, and that the overall quality of care is maintained or even improved.

"However, it is crucial to recognize that these findings are primarily descriptive and necessitate further research to establish causality and inform the development of effective prevention and treatment strategies for sepsis."

UKST Founder and Joint CEO Dr. Ron Daniels said, "As an intensive care doctor in inner-city Birmingham, I frequently see patients from underrepresented communities presenting late with sepsis. This important study reminds us that and the presence of underlying illness—which are themselves often interlinked and additionally linked to ethnicity—are at play in determining inequality in the risk of developing non-COVID sepsis. Health care has a duty to reduce this inequality and improve access for all.

"This study therefore highlights the need for targeted education among members of the public in at-risk communities and for the that serve them, which is why advocacy organizations like the UK Sepsis Trust are working to develop resources in multiple languages, that are inclusive of different skin tones. However, we must remember that while the risk factors highlighted in this study are important, sepsis can still strike indiscriminately."

Dr. Colin Brown, lead for Antimicrobial Resistance and Sepsis at the UK Health Security Agency, said, "While severe infections and sepsis can impact anyone, our data is increasingly highlighting the complex interplay between socioeconomic status, underlying medical conditions and sepsis risk.

"Our research has found that some people were more likely to die from sepsis compared to others, including those in the lowest socioeconomic groups, and that those who need to take antibiotics more regularly are also at greater risk. Tackling inequalities is a core part of our public health approach and a deeper understanding of who serious bacterial infections affect will help us best target interventions to address them."

More information: eClinicalMedicine (2023)

Journal information: EClinicalMedicine
Citation: Study links deprivation with risk of dying from sepsis (2023, November 23) retrieved 4 March 2024 from https://medicalxpress.com/news/2023-11-links-deprivation-dying-sepsis.html
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