Evidence map›Paper›PMID 26928793›Full record

ArticleBMC pregnancy and childbirth2016

Caesarean section by maternal age group among singleton deliveries and primiparous Japanese women: a secondary analysis of the WHO Global Survey on Maternal and Perinatal Health.

Kyoko Yoshioka-Maeda, Erika Ota, Togoobaatar Ganchimeg, Mariko Kuroda, Rintaro Mori

Abstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  6. Analysis of Caesarean Section Rates Using the Robson Classification System at a University Hospital in Spain.International journal of environmental research and public health · 2020
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  7. Observational
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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

5 authors.

Kyoko Yoshioka-MaedaDepartment of Community Health Nursing, School of Nursing, Faculty of Medicine, Tokyo Medical University, Tokyo, Japan. kyoko@tokyo-med.ac.jp.
Erika OtaDepartment of Health Policy, National Center for Child Health and Development, Tokyo, Japan. otaerika@gmail.com.
Togoobaatar GanchimegDepartment of Health Policy, National Center for Child Health and Development, Tokyo, Japan. ganchimeg.tb@gmail.com.
Mariko KurodaDepartment of Community Health Nursing, School of Nursing, Faculty of Medicine, Tokyo Medical University, Tokyo, Japan. m-kuroda@tokyo-med.ac.jp.
Rintaro MoriDepartment of Health Policy, National Center for Child Health and Development, Tokyo, Japan. rintaromori@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe rising caesarean section rate is an important public health concern that in turn increases maternal and perinatal risks of adverse effects, unnecessary medical consumption, and inequities in worldwide access. The aim of this study was to investigate caesarean section indications by maternal age group and examine the association between age and caesarean section in primiparous Japanese women with singleton births.

methodsWe analyzed the Japanese data of primiparous women with singleton births from the WHO Global Survey on Maternal and Perinatal Health to compare maternal and neonatal characteristics and outcomes between groups with and without caesarean section. Women were divided into 3 maternal age groups (≤29, 30 to 34 and ≥35 years). We performed multivariable logistic-regression analysis to identify characteristics associated with caesarean section.

resultsOf the 3245 women with singleton births were included in the Japanese data, 610 women (18.8%) delivered by caesarean section, half of whom (n = 305) were nulliparous. We included singleton nulliparous women (1747 deliveries) in our analysis. The maternal age 35 years old was associated with higher risks for all caesarean section (adjusted odds ratio [AOR] 1.89, 95% CI 1.28-2.78) and emergency antepartum caesarean section (AOR 2.26, 95% CI 1.49-3.40). Intrapartum caesarean section, which is mainly performed for obstetric indications, was not higher among the older maternal age group.

conclusionIn Japan, advanced maternal age significantly increased the risk for caesarean section; however, intrapartum caesarean section was not higher risk among the older age group. Management of maternal complications would help to reduce the rate of caesarean sections and associated unnecessary medical consumption.

Indexed as

Age FactorsParityAdultCesarean SectionFemaleHealth SurveysHumansJapanLogistic ModelsObstetric Labor ComplicationsOdds RatioPregnancy

Identifiers

PMID26928793
PMCPMC4770700

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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.