Evidence map›Paper›PMID 37696821›Full record

ArticleScientific reports2023

Delivery room intubation and severe intraventricular hemorrhage in extremely preterm infants without low Apgar scores: A Japanese retrospective cohort study.

Kei Tamai, Naomi Matsumoto, Takashi Yorifuji, Akihito Takeuchi, Makoto Nakamura, Kazue Nakamura, Misao Kageyama, Neonatal Research Network of Japan

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.8field-weighted citation impact, top 24% 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

3 citing papers in PubMed, 3 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

Kei TamaiDivision of Neonatology, Okayama Medical Center, National Hospital Organization, 1711-1 Tamasu, Kita-Ku, Okayama, 701-1192, Japan. gmd501041@s.okayama-u.ac.jp.
Naomi MatsumotoDepartment of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Takashi YorifujiDepartment of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Akihito TakeuchiDivision of Neonatology, Okayama Medical Center, National Hospital Organization, 1711-1 Tamasu, Kita-Ku, Okayama, 701-1192, Japan.
Makoto NakamuraDivision of Neonatology, Okayama Medical Center, National Hospital Organization, 1711-1 Tamasu, Kita-Ku, Okayama, 701-1192, Japan.
Kazue NakamuraDivision of Neonatology, Okayama Medical Center, National Hospital Organization, 1711-1 Tamasu, Kita-Ku, Okayama, 701-1192, Japan.
Misao KageyamaDivision of Neonatology, Okayama Medical Center, National Hospital Organization, 1711-1 Tamasu, Kita-Ku, Okayama, 701-1192, Japan.
Neonatal Research Network of Japan
Okayama Medical Center · JPOkayama University · JPNational Hospital Organization · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of this study was to assess the associations between delivery room intubation (DRI) and severe intraventricular hemorrhage (IVH), as well as other neonatal outcomes, among extremely preterm infants without low Apgar scores using data from a large-scale neonatal registry data in Japan. We analyzed data for infants born at 24-27 gestational weeks between 2003 and 2019 in Japan using robust Poisson regression. Infants with low Apgar scores (≤ 1 at 1 min or ≤ 3 at 5 min) were excluded. The primary outcome was severe IVH. Secondary outcomes were other neonatal morbidities and mortality. The full cohort included 16,081 infants (intubation cohort, 13,367; no intubation cohort, 2714). The rate of DRI increased over time (78.6%, 2003-2008; 83.4%, 2009-2014; 87.8%, 2015-2019), while the rate of severe IVH decreased (7.1%, 2003-2008; 5.7%, 2009-2014; 5.3%, 2015-2019). Infants with DRI had a higher risk of severe IVH than those without DRI (6.8% vs. 2.3%; adjusted risk ratio, 1.86; 95% confidence interval, 1.33-2.58). The results did not change substantially when stratified by gestational age. Despite conflicting changes over time in DRI and severe IVH, DRI was associated with an increased risk of severe IVH among extremely preterm infants in Japan.

Indexed as

Cerebral HemorrhageDelivery RoomsInfant, Extremely PrematureIntubation, IntratrachealApgar ScoreEast Asian PeopleFemaleHumansInfantInfant, NewbornJapanPregnancyRetrospective Studies

Identifiers

PMID37696821
PMCPMC10495461
OpenAlexW4386601517

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.