Evidence map›Paper›PMID 34876061›Full record

ArticleBMC pregnancy and childbirth2021

Length of hospital stay after delivery among Danish women with congenital heart disease: a register-based cohort study.

Anne Marie Kirkegaard, Maria Breckling, Dorte Guldbrand Nielsen, Janne S Tolstrup, Søren Paaske Johnsen, Annette Kjær Ersbøll, Stine Kloster

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC pregnancy and childbirth, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact, top 69% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed, 1 citations in OpenAlex.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Anne Marie Kirkegaard *National Institute of Public Health, University of Southern Denmark, Studiestræde 6, 1455, Copenhagen K, Denmark.
Maria Breckling *National Institute of Public Health, University of Southern Denmark, Studiestræde 6, 1455, Copenhagen K, Denmark.
Dorte Guldbrand NielsenDepartment of Clinical Medicine, Aarhus University, Aarhus, Denmark.
Janne S TolstrupNational Institute of Public Health, University of Southern Denmark, Studiestræde 6, 1455, Copenhagen K, Denmark.
Søren Paaske JohnsenDanish Center for Clinical Health Services Research, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
Annette Kjær ErsbøllNational Institute of Public Health, University of Southern Denmark, Studiestræde 6, 1455, Copenhagen K, Denmark.
Stine KlosterNational Institute of Public Health, University of Southern Denmark, Studiestræde 6, 1455, Copenhagen K, Denmark. stkl@sdu.dk.
University of Southern Denmark · DKAalborg University · DKAarhus University · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe literature about the impact of congenital heart disease (CHD) on the length of hospital stay after delivery is limited, and nonexisting in a country with free and equal access to healthcare. We aimed to examine the hypothesis that Danish women with CHD have a longer hospital stay after delivery compared to women without CHD. Secondarily, we aimed to examine the hypothesis that cesarean section modifies the association.

methodsThe study was a national cohort study using Danish nationwide registers in 1997-2014. Maternal CHD was categorized as simple, moderate, or complex CHD. The comparison group consisted of women without CHD. Outcome of interest was length of hospital stay after delivery registered in complete days. Mode of delivery was categorized as cesarean section or vaginal delivery. Data was analyzed using a generalized linear model with a Poisson distribution.

resultsWe included 939,678 births among 551,119 women. Women without CHD were on average admitted to the hospital for 3.6 (SD 3.7) days, whereas women with simple, moderate, and complex CHD were admitted for 3.9 (SD 4.4), 4.0 (SD 3.8) and 5.1 (SD 6.7) days, respectively. The adjusted length of hospital stay after delivery was 12% (relative ratio (RR) = 1.12, 95% confidence interval (CI) 1.07-1.18), 14% (RR = 1.14, 95% CI: 1.07-1.21), and 45% (RR = 1.45, 95% CI: 1.24-1.70) longer among women with simple, moderate, and complex CHD, respectively, compared to women without CHD. The association between maternal CHD and length of hospital stay was not modified by mode of delivery (p-value of interaction = 0.62). Women who gave birth by cesarean section were on average admitted to the hospital for 2.7 days longer compared to women with vaginal delivery.

conclusionThe hospital stay after delivery was significantly longer among women with CHD as compared to women without CHD. Further, higher complexity of CHD was associated with longer length of stay. Cesarean section did not modify the association.

Indexed as

Length of StayAdultCohort StudiesDelivery, ObstetricDenmarkFemaleHeart Defects, CongenitalHospitalizationHumansPregnancyPregnancy Complications, CardiovascularRegistriesCongenital heart diseaseLength of hospital stayPregnancy

Identifiers

PMID34876061
PMCPMC8650333
OpenAlexW4200465728

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.