60-day mortality and the role of SARS-CoV-2 in hospital admissions of immunocompromised patients during later Omicron period: a population-based study in Sweden

被引：0
作者：
Spreco, Armin [1 ,2 ]
Andersson, Christer [1 ,2 ]
Sjodahl, Rune [2 ,3 ]
Niward, Katarina [3 ,4 ]
机构：
[1] Linkoping Univ, Dept Hlth Med & Caring Sci, Linkoping, Sweden
[2] Reg Execut Off, Linkoping, Ostergotland, Sweden
[3] Linkoping Univ, Dept Biomed & Clin Sci, Linkoping, Sweden
[4] Linkoping Univ Hosp, Dept Infect Dis, Linkoping, Sweden
来源：
INFECTIOUS DISEASES | 2025年
基金：
瑞典研究理事会;
关键词：
SARS-CoV-2; Omicron; mortality; immunocompromised; frailty; performance status;
D O I：
10.1080/23744235.2025.2465828
中图分类号：
R51 [传染病];
学科分类号：
100401 ;
摘要：
BackgroundReal-world data on hospitalised SARS-CoV-2-positive patients are important for post-pandemic preventive measures.ObjectivesThis study aims to explore 60-day mortality of immunocompromised patients hospitalised in later Omicron period, accounting for the relevance of COVID-19 for hospital care.MethodsA retrospective population-based cohort study in & Ouml;sterg & ouml;tland County, Sweden, included all adult patients with a positive SARS-CoV-2 PCR test within 3 weeks of hospital admission. Clinical data including functional level (combined assessment of frailty and performance status), and COVID-19's impact on hospital care were collected from medical records. An adjusted binary logistic regression model was applied for the main outcome of 60-day COVID-19-related mortality, with immunosuppression as the main exposure.Results1128 hospitalised SARS-CoV-2-positive patients were included in the analysis whereof 12.9% were immunocompromised. Hospital admission due to COVID-19 was significantly more common among immunocompromised than non-immunocompromised (71.9% vs 49.5%), and 60-day COVID-19 mortality was 10.5% and 8.0% (p = 0.41), respectively. The median age of patients hospitalised due to COVID-19 was 78 years, with most having low/very low functional levels and >= 3 comorbidities. Adjusted for possible confounders, immunosuppression showed a significantly increased risk of 60-day COVID-19-related mortality (OR 2.41, 95% CI 1.06-5.47, p = 0.04).ConclusionA majority of COVID-19-related hospitalisations during later Omicron period in a high immunity population, involved people over 70 years with low/very low functional levels and multiple comorbidities. Immunocompromised patients had a 2.5 times higher risk of 60-day COVID-19-related mortality. These findings underscore the need for targeted preventive measures in vulnerable elderly and immunocompromised populations to mitigate COVID-19-related hospitalisations and deaths.
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页数：13
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