Evidence map›Paper›PMID 32912144›Full record

ArticleEnvironmental health and preventive medicine2020

Weekend and off-hour effects on the incidence of cerebral palsy: contribution of consolidated perinatal care.

Satoshi Toyokawa, Junichi Hasegawa, Tsuyomu Ikenoue, Yuri Asano, Emi Jojima, Shoji Satoh, Tomoaki Ikeda, Kiyotake Ichizuka, Satoru Takeda, Nanako Tamiya and 6 more

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

Article in Environmental health and preventive medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 26% 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

6 citing papers in PubMed, 8 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Time of birth and additional support need at school age: national cohort study of 865,409 children.Journal of perinatology : official journal of the California Perinatal Association · 2023
    Article
  5. Article
  6. Article
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

16 authors at 11 institutions in 2 countries.

Satoshi ToyokawaDepartment of Public Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan. t-satoshi@umin.ac.jp.ORCID http://orcid.org/0000-0003-0539-5729
Junichi HasegawaDepartment of the Japan Obstetric Compensation System for Cerebral Palsy, Japan Council for Quality Health Care, Tokyo, Japan.
Tsuyomu IkenoueUniversity of Miyazaki, Miyazaki, Japan.
Yuri AsanoDepartment of the Japan Obstetric Compensation System for Cerebral Palsy, Japan Council for Quality Health Care, Tokyo, Japan.
Emi JojimaDepartment of the Japan Obstetric Compensation System for Cerebral Palsy, Japan Council for Quality Health Care, Tokyo, Japan.
Shoji SatohMaternal and Perinatal Care Center, Oita Prefectural Hospital, Oita, Japan.
Tomoaki IkedaDepartment of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Mie, Japan.
Kiyotake IchizukaDepartment of Obstetrics and Gynecology, Showa University Northern Yokohama Hospital, Kanagawa, Japan.
Satoru TakedaDepartment of Obstetrics and Gynecology, Juntendo University, Tokyo, Japan.
Nanako TamiyaDepartment of Health Services Research, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan.
Akihito NakaiDepartment of Obstetrics and Gynecology, Nippon Medical School, Tokyo, Japan.
Keiya FujimoriDepartment of Obstetrics and Gynecology, Fukushima Medical University, Fukushima, Japan.
Tsugio MaedaMaeda Clinic, Shizuoka, Japan.
Hideaki MasuzakiDepartment of Obstetrics and Gynecology, University of Nagasaki, Nagasaki, Japan.
Hideaki SuzukiDepartment of the Japan Obstetric Compensation System for Cerebral Palsy, Japan Council for Quality Health Care, Tokyo, Japan.
Shigeru UedaDepartment of the Japan Obstetric Compensation System for Cerebral Palsy, Japan Council for Quality Health Care, Tokyo, Japan.
Fukushima Medical University · JPJuntendo University · JPMie University · JPNippon Medical School · JPOita Prefectural Hospital · JPShowa University Northern Yokohama Hospital · JPSt. Marianna University School of Medicine · JPUnited Cerebral Palsy · USUniversity of Miyazaki · JPUniversity of Nagasaki · JPUniversity of Tsukuba · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study estimated the effects of weekend and off-hour childbirth and the size of perinatal medical care center on the incidence of cerebral palsy.

methodsThe cases were all children with severe cerebral palsy born in Japan from 2009 to 2012 whose data were stored at the Japan Obstetric Compensation System for Cerebral Palsy database, a nationally representative database. The inclusion criteria were the following: neonates born between January 2009 and December 2012 who had a birth weight of at least 2000 g and gestational age of at least 33 weeks and who had severe disability resulting from cerebral palsy independent of congenital causes or factors during the neonatal period or thereafter. Study participants were restricted to singletons and controls without report of death, scheduled cesarean section, or ambulance transportation. The controls were newborns, randomly selected by year and type of delivery (normal spontaneous delivery without cesarean section and emergency cesarean section) using a 1:10 case to control ratio sampled from the nationwide Japan Society of Obstetrics and Gynecology database.

resultsA total of 90 cerebral palsy cases and 900 controls having normal spontaneous delivery without cesarean section were selected, as were 92 cerebral palsy cases and 920 controls with emergent cesarean section. A significantly higher risk for cerebral palsy was found among cases that underwent emergent cesarean section on weekends (odds ratio [OR] 1.72, 95% confidence interval [CI] 1.06-2.81) and during the night shift (OR 2.29, 95% CI 1.30-4.02). No significant risk was found among normal spontaneous deliveries on weekends (OR 1.63, 95% CI 0.97-2.73) or during the quasi-night shift (OR 1.26, 95% CI 0.70-2.27). Regional perinatal care centers showed significantly higher risk for cerebral palsy in both emergent cesarean section (OR 2.35, 95% CI 1.47-3.77) and normal spontaneous delivery (OR 2.92, 95% CI 1.76-4.84).

conclusionLabor on weekends, during the night shift, and at regional perinatal medical care centers was associated with significantly elevated risk for cerebral palsy in emergency cesarean section.

Indexed as

Case-Control StudiesCerebral PalsyDelivery, ObstetricHealth FacilitiesHumansIncidenceInfant, NewbornJapanParturitionPerinatal CareRetrospective StudiesTime FactorsAccess to healthcareCerebral palsyConcentrationIntensificationJapanNightshift

Identifiers

PMID32912144
PMCPMC7488476
OpenAlexW3086066323

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.