Evidence map›Paper›PMID 21199853›Full record

ReviewPediatrics2011

Hormonal contraception and thrombotic risk: a multidisciplinary approach.

Cameron C Trenor, Richard J Chung, Alan D Michelson, Ellis J Neufeld, Catherine M Gordon, Marc R Laufer, S Jean Emans

Abstract readReview
In one paragraph

Review in Pediatrics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 2 pooled it
6.9field-weighted citation impact, top 3% 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

42 citing papers in PubMed, 2 syntheses or guidelines pooled it, 131 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Thrombosis and Thrombotic Risk in Athletes.Journal of clinical medicine · 2024
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Combined oral contraceptives may activate the contact system in healthy women.Research and practice in thrombosis and haemostasis · 2023
    Article
  17. Article
  18. Review
  19. Article
  20. 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

7 authors at 3 institutions in 1 country.

Cameron C TrenorDivision of Hematology/Oncology, Department of Medicine and Surgery, Children’s Hospital Boston, Boston, Massachusetts 02115, USA. cameron.trenor@childrens.harvard.edu
Richard J Chung
Alan D Michelson
Ellis J Neufeld
Catherine M Gordon
Marc R Laufer
S Jean Emans
Boston Children's Hospital · USHarvard University · USDana-Farber Cancer Institute · US

Funding

Patient-Oriented Research in Pediatric HematologyK24HL004184 · NHLBI · CHILDREN'S HOSPITAL BOSTON · PI NEUFELD, ELLIS J · 1999 to 2010
$1.3M
Activation of encrypted tissue factor during thrombus formation in vivoK08HL089509 · NHLBI · BETH ISRAEL DEACONESS MEDICAL CENTER · PI TRENOR, CAMERON · 2008 to 2012
$625k
NHLBI NIH HHS K08 HL089509NHLBI NIH HHS K24 HL004184PHS HHS T71 MC00009
6 · The paper itself

Abstract

Heightened publicity about hormonal contraception and thrombosis risk and the publication of new guidelines by the World Health Organization in 2009 and the Centers for Disease Control and Prevention in 2010 addressing this complex issue have led to multidisciplinary discussions on the special issues of adolescents cared for at our pediatric hospital. In this review of the literature and new guidelines, we have outlined our approach to the complex patients referred to our center. The relative risk of thrombosis on combined oral contraception is three- to fivefold, whereas the absolute risk for a healthy adolescent on this therapy is only 0.05% per year. This thrombotic risk is affected by estrogen dose, type of progestin, mechanism of delivery, and length of therapy. Oral progestin-only contraceptives and transdermal estradiol used for hormone replacement carry minimal or no thrombotic risk. Transdermal, vaginal, or intrauterine contraceptives and injectable progestins need further study. A personal history of thrombosis, persistent or inherited thrombophilia, and numerous lifestyle choices also influence thrombotic risk. In this summary of one hospital's approach to hormone therapies and thrombosis risk, we review relative-risk data and discuss the application of absolute risk to individual patient counseling. We outline our approach to challenging patients with a history of thrombosis, known thrombophilia, current anticoagulation, or family history of thrombosis or thrombophilia. Our multidisciplinary group has found that knowledge of the guidelines and individualized management plans have been particularly useful for informing discussions about hormonal and nonhormonal options across varied indications.

Indexed as

Interdisciplinary CommunicationAge FactorsAnimalsContraceptives, Oral, HormonalFemaleHumansProgesterone CongenersRisk FactorsThrombosisContraceptives, Oral, HormonalProgesterone Congeners

Identifiers

PMID21199853
PMCPMC3025417
OpenAlexW2038911080

What OpenQuestion holds

Textmetadata
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.