Evidence map›Paper›PMID 38380079›Full record

ReviewAJOG global reports2024

The use of bubble charts in analyzing the global second-stage cesarean delivery rates: a systematic review.

Lin Tai Linus Lee, Christopher Pak Hey Chiu, Man Kee Teresa Ma, Lee Ting Kwong, Man Wai Catherine Hung, Yuen Yee Yannie Chan, Eunice Joanna Wong, Theodora Hei Tung Lai, Oi Ka Chan, Po Lam So and 3 more

Open access · goldAbstract readReview
In one paragraph

Review in AJOG global reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.2field-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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Article
  2. 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

13 authors at 7 institutions in 4 countries.

Lin Tai Linus LeeDepartment of Obstetrics and Gynaecology, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong (Dr Lee).
Christopher Pak Hey ChiuDepartment of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong (Dr Chiu, Ms Chan, and Prof Leung).
Man Kee Teresa MaDepartment of Obstetrics and Gynaecology, Queen Elizabeth Hospital, Yau Ma Tei, Hong Kong (Dr Ma).
Lee Ting KwongDepartment of Obstetrics and Gynaecology, Tuen Mun Hospital, Tuen Mun, Hong Kong (Drs Kwong and So).
Man Wai Catherine HungDepartment of Obstetrics and Gynaecology, Kwong Wah Hospital, Kowloon, Hong Kong (Drs Hung and Lau).
Yuen Yee Yannie ChanDepartment of Obstetrics and Gynaecology, Princess Margaret Hospital, Lai Chi Kok, Hong Kong (Dr Chan).
Eunice Joanna WongDepartment of Obstetrics and Gynaecology, Tuen Mun Hospital, Tuen Mun, Hong Kong (Drs Kwong and So).
Theodora Hei Tung LaiDepartment of Obstetrics and Gynaecology, Queen Mary Hospital, Pok Fu Lam, Hong Kong (Dr Lai).
Oi Ka ChanDepartment of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong (Dr Chiu, Ms Chan, and Prof Leung).
Po Lam SoDepartment of Obstetrics and Gynaecology, Tuen Mun Hospital, Tuen Mun, Hong Kong (Drs Kwong and So).
Wai Lam LauDepartment of Obstetrics and Gynaecology, Kwong Wah Hospital, Kowloon, Hong Kong (Drs Hung and Lau).
Tak Yeung LeungDepartment of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong (Dr Chiu, Ms Chan, and Prof Leung).
Hong Kong College of Obstetricians and Gynaecologists Research Group
Chinese University of Hong Kong · HKTuen Mun Hospital · CNKwong Wah Hospital · CNPamela Youde Nethersole Eastern Hospital · CNPrincess Margaret Hospital · NZQueen Elizabeth Hospital · GBQueen Mary Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aimed to systematically review the worldwide second-stage cesarean delivery rate concerning pre-second-stage cesarean delivery and assisted vaginal birth rates. DATA SOURCES: PubMed, Medline Ovid, EBSCOhost, Embase, Scopus, and Google Scholar were queried from inception to February 2023, with the following terms: "full dilatation," "second stage," and "cesarean," with their word variations. Furthermore, an additional cohort of 353,434 cases from our recently published study was included. STUDY ELIGIBILITY CRITERIA: Only original studies that provided sufficient information on the number of pre-second-stage cesarean deliveries, second-stage cesarean deliveries, and vaginal births were included for the calculation of different modes of delivery. Systemic reviews, meta-analyses, or case reports were excluded.

methodsStudy identification and data extraction were independently performed by 2 authors. Selected studies were categorized on the basis of parity, study period, and geographic regions for comparison.

resultsA total of 25 studies were included. The overall pre-second-stage cesarean delivery rate, the second-stage cesarean delivery rate, and the second-stage cesarean delivery-to-assisted vaginal birth ratio were 17.94%, 2.65%, and 0.19, respectively. Only 5 studies described singleton, term, cephalic presenting pregnancies of nulliparous women, and their second-stage cesarean delivery rates were significantly higher than those studies with cohorts of all parity groups (4.50% vs 0.83%;

conclusionThe overall worldwide pre-second-stage cesarean delivery rate was 17.94%, the second-stage cesarean delivery rate was 2.65%, and the second-stage cesarean delivery-to-assisted vaginal birth ratio was 0.19. The African studies had the highest second-stage cesarean delivery rate (5.14%) and second-stage cesarean delivery-to-assisted vaginal birth ratio (1.88), whereas the studies from East Asia and South Asia were opposite (0.94% and 0.11, respectively).

Indexed as

cesarean deliveryfull dilatationsecond stage

Identifiers

PMID38380079
PMCPMC10877423
OpenAlexW4391037641

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.