Evidence map›Paper›PMID 18295181›Full record

ArticleAmerican journal of obstetrics and gynecology2008

Population trends in cesarean delivery for breech presentation in the United States, 1997-2003.

Henry Chong Lee, Yasser Y El-Sayed, Jeffrey B Gould

Abstract readComparative Study
In one paragraph

Article in American journal of obstetrics and gynecology, 2008. 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
–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

6 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. The Relevance of the Second Cesarean Delivery in the Reduction of Institutional Cesarean Delivery Rates.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2018
    Article
  5. Recurrence of breech presentation in consecutive pregnancies.BJOG : an international journal of obstetrics and gynaecology · 2010
    Article
  6. Predisposing Factors and Outcome of Malpresentations in an Institute.JNMA; journal of the Nepal Medical Association
    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

3 authors.

Henry Chong LeeDepartment of Pediatrics, Perinatal Epidemiology, and Health Outcomes Research Unit, Stanford University, Stanford, CA 94304, USA. hclee@stanford.edu
Yasser Y El-Sayed
Jeffrey B Gould

Funding

TRAINING IN NEONATAL BIOLOGYT32HD007249 · NICHD · STANFORD UNIVERSITY · PI STEVENSON, DAVID K · 1985 to 2013
$4.4M
NICHD NIH HHS 2T32 HD 07249-23NICHD NIH HHS T32 HD007249
6 · The paper itself

Abstract

objectiveThe objective of the study was to determine whether cesarean delivery for breech has increased in the United States. STUDY

designWe calculated cesarean rates for term singletons in breech/malpresentation from 1997 to 2003 using National Center for Health Statistics data. We compared rates by sociodemographic groups and state. Multivariable logistic regression models were constructed to see whether factors associated with cesarean delivery differed over time.

resultsBreech cesarean rates increased overall from 83.8% to 85.1%. There was a significant increase in rates for most sociodemographic groups. There was little to no increase for mothers younger than 30 years old. There was wide variability in rates by state, 61.6-94.2% in 1997. Higher breech incidence correlated with lower cesarean rates, suggesting potential state bias in reporting breech.

conclusionIn the United States, breech infants are predominantly born by cesarean. There was a small increase in this trend from 1998 to 2002. There is wide variability by state, which is not explained by sociodemographic patterns and may be due to reporting differences.

Indexed as

AdultBreech PresentationCesarean SectionFemaleHumansPregnancyUnited States

Identifiers

PMID18295181
PMCPMC2533265

What OpenQuestion holds

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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.