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Examining the influence of Covid-19 restrictions, a nurse strike, and SARS-CoV-2 coinfection on bacteremia mortality : A Danish population-based cohort study (2019–2022)

Jansåker, Filip LU ; Holm, Mona Katrine Alberthe ; Knudsen, Jenny Dahl and Boel, Jonas Bredtoft (2024) In Heliyon 10(13).
Abstract

Objectives: Bacteremia is an acute severe infection with high mortality. Changes in healthcare services and coinfections with SARS-CoV-2 may have affected the mortality for bacteremia during the COVID-19 pandemic, which has been reported for other major diseases. In this study we examine the all-cause bacteremia mortality amidst the COVID-19 pandemic. Methods: A population-based cohort study comprised of laboratory confirmed bacteremia episodes in the Capital Region, Denmark (March 2019–February 2022). Cox proportional hazards models were used to calculate hazard ratios (HR) and 95 % confidence intervals (CI) for all-cause bacteremia mortality associated with the Covid-19 restriction period, a strike period, and coinfection with... (More)

Objectives: Bacteremia is an acute severe infection with high mortality. Changes in healthcare services and coinfections with SARS-CoV-2 may have affected the mortality for bacteremia during the COVID-19 pandemic, which has been reported for other major diseases. In this study we examine the all-cause bacteremia mortality amidst the COVID-19 pandemic. Methods: A population-based cohort study comprised of laboratory confirmed bacteremia episodes in the Capital Region, Denmark (March 2019–February 2022). Cox proportional hazards models were used to calculate hazard ratios (HR) and 95 % confidence intervals (CI) for all-cause bacteremia mortality associated with the Covid-19 restriction period, a strike period, and coinfection with SARS-CoV-2, adjusted for possible confounders. Results: A total of 14,912 bacteremia episodes were identified in 12,693 patients during the study period. The 30- and 90-day all-cause mortality were 19 % and 27 %, respectively. The fully adjusted HR for 30- and 90-day all-cause mortality associated with the Covid-19 restriction period were 0.91 (95 % CI, 0.84 to 0.99) and 0.90 (95 % CI, 0.84 to 0.96), respectively, compared to the remaining time period. The corresponding HRs associated with SARS-CoV-2 coinfection were 1.29 (95 % CI, 1.11 to 1.50) and 1.36 (95 % CI, 1.20 to 1.55) compared to patients without coinfection. The association between the national nurse strike and all-cause bacteremia mortality was inconclusive. Conclusions: In this large population-based cohort study, a significant reduction in all-cause mortality for bacteremia was observed during the Covid-19 restriction period in Denmark, while coinfection with SARS-CoV-2 seem to be a substantial risk factor for all-cause bacteremia mortality.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Bacteremia, Bloodstream infection, Covid-19, Mortality, SARS-CoV-2
in
Heliyon
volume
10
issue
13
article number
e33696
publisher
Elsevier
external identifiers
  • pmid:39040231
  • scopus:85197565175
ISSN
2405-8440
DOI
10.1016/j.heliyon.2024.e33696
language
English
LU publication?
yes
id
881746c3-db89-4c5b-8a8f-8c5ca74b7a20
date added to LUP
2024-09-23 13:19:47
date last changed
2024-09-24 03:00:02
@article{881746c3-db89-4c5b-8a8f-8c5ca74b7a20,
  abstract     = {{<p>Objectives: Bacteremia is an acute severe infection with high mortality. Changes in healthcare services and coinfections with SARS-CoV-2 may have affected the mortality for bacteremia during the COVID-19 pandemic, which has been reported for other major diseases. In this study we examine the all-cause bacteremia mortality amidst the COVID-19 pandemic. Methods: A population-based cohort study comprised of laboratory confirmed bacteremia episodes in the Capital Region, Denmark (March 2019–February 2022). Cox proportional hazards models were used to calculate hazard ratios (HR) and 95 % confidence intervals (CI) for all-cause bacteremia mortality associated with the Covid-19 restriction period, a strike period, and coinfection with SARS-CoV-2, adjusted for possible confounders. Results: A total of 14,912 bacteremia episodes were identified in 12,693 patients during the study period. The 30- and 90-day all-cause mortality were 19 % and 27 %, respectively. The fully adjusted HR for 30- and 90-day all-cause mortality associated with the Covid-19 restriction period were 0.91 (95 % CI, 0.84 to 0.99) and 0.90 (95 % CI, 0.84 to 0.96), respectively, compared to the remaining time period. The corresponding HRs associated with SARS-CoV-2 coinfection were 1.29 (95 % CI, 1.11 to 1.50) and 1.36 (95 % CI, 1.20 to 1.55) compared to patients without coinfection. The association between the national nurse strike and all-cause bacteremia mortality was inconclusive. Conclusions: In this large population-based cohort study, a significant reduction in all-cause mortality for bacteremia was observed during the Covid-19 restriction period in Denmark, while coinfection with SARS-CoV-2 seem to be a substantial risk factor for all-cause bacteremia mortality.</p>}},
  author       = {{Jansåker, Filip and Holm, Mona Katrine Alberthe and Knudsen, Jenny Dahl and Boel, Jonas Bredtoft}},
  issn         = {{2405-8440}},
  keywords     = {{Bacteremia; Bloodstream infection; Covid-19; Mortality; SARS-CoV-2}},
  language     = {{eng}},
  number       = {{13}},
  publisher    = {{Elsevier}},
  series       = {{Heliyon}},
  title        = {{Examining the influence of Covid-19 restrictions, a nurse strike, and SARS-CoV-2 coinfection on bacteremia mortality : A Danish population-based cohort study (2019–2022)}},
  url          = {{http://dx.doi.org/10.1016/j.heliyon.2024.e33696}},
  doi          = {{10.1016/j.heliyon.2024.e33696}},
  volume       = {{10}},
  year         = {{2024}},
}