Evidence map›Paper›PMID 42757709›Full record

ArticleActa obstetricia et gynecologica Scandinavica2026

Incidence and risk factors for postpartum infections: A Norwegian cohort study, 2012-2020.

Kjerstine Røe, Ingvil Krarup Sørbye, Cecilie Fredvik Torkildsen, Anders Engeland, Hilde Marie Engjom, Roy Miodini Nilsen, Kari Klungsøyr

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Article in Acta obstetricia et gynecologica Scandinavica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Kjerstine RøeFaculty of Medicine, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.ORCID https://orcid.org/0009-0006-8380-0151
Ingvil Krarup SørbyeDivision of Obstetrics and Gynecology, Oslo University Hospital, Oslo, Norway.
Cecilie Fredvik TorkildsenDivision of Obstetrics and Gynecology, Stavanger University Hospital, Stavanger, Norway.ORCID https://orcid.org/0000-0002-8676-3046
Anders EngelandFaculty of Medicine, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.ORCID https://orcid.org/0000-0001-5620-9207
Hilde Marie EngjomDepartment of Health Promotion, Norwegian Institute of Public Health, Bergen, Norway.ORCID https://orcid.org/0000-0003-1582-4283
Roy Miodini NilsenFaculty of Health and Social Sciences, Western Norway University of Applied Sciences, Bergen, Norway.
Kari KlungsøyrFaculty of Medicine, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.ORCID https://orcid.org/0000-0003-2482-1690

Funding

Norwegian Research counsil 320181the Norwegian SIDS and Stillbirth Society Grant 3/2019the Norwegian SIDS and Stillbirth Society Grant 4/22Universitetet i Bergen
6 · The paper itself

Abstract

introductionFew epidemiological studies have examined postpartum infections in the Nordic countries. This study aimed to assess the incidence and risk factors for postpartum infections in Norway. MATERIAL AND

methodsWe conducted a historical cohort study including all deliveries in Norway from 2012 to 2020, using linked nationwide data from the Medical Birth Registry of Norway, the Norwegian Patient Registry, and Statistics Norway. We defined two outcomes: endometritis/puerperal sepsis (O85, International Classification of Diseases 10th version (ICD-10); the code does not differentiate between endometritis and puerperal sepsis, and endometritis predominates) and other postpartum infections (O86, ICD-10). Associations were estimated as relative risks (RR) with 95% confidence intervals (CI) using log-binomial regression.

resultsAmong 516 874 deliveries, we identified 5942 cases (1.15%) of endometritis/puerperal sepsis (O85) and 8833 (1.71%) of other postpartum infections (O86). The incidence of endometritis/puerperal sepsis increased over time from 0.93% in 2012 to 1.38% in 2020 (test for trend, p < 0.001). After adjusting for all covariates, delivery-related factors demonstrated the strongest associations with both outcomes, especially emergency cesarean section (aRR

conclusionsPostpartum infections are common, and the incidence of endometritis/puerperal sepsis is increasing. For all postpartum infections, delivery-related factors demonstrate the strongest associations. Postpartum hemorrhage and chorioamnionitis/intrapartum infection may represent key targets for prevention/prevention of progression. Revision of the coding system is necessary to enable differentiation between puerperal sepsis and endometritis for better surveillance.

Indexed as

Endometritispostpartum periodpregnancy complications, infectiouspuerperal infectionrisk factorssepsis

Identifiers

PMID42757709
PMCPMC13587157

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.