Evidence map›Paper›PMID 30519125›Full record

ArticleOpen access journal of contraception2018

Venous thrombosis and hormonal contraception: what's new with estradiol-based hormonal contraceptives?

Franca Fruzzetti, Angelo Cagnacci

Open access · goldAbstract readEditorial
In one paragraph

Article in Open access journal of contraception, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

13 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Systemic hormonal contraception and risk of venous thromboembolism.Acta obstetricia et gynecologica Scandinavica · 2022
    Article
  9. Analysis of the Role of Female Hormones During Infection by COVID-19.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2021
    Review
  10. Review
  11. Review
  12. Hormones and thrombosis: risk across the reproductive years and beyond.Translational research : the journal of laboratory and clinical medicine · 2020
    Review
  13. 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

2 authors at 2 institutions in 1 country.

Franca FruzzettiDepartment of Obstetrics and Gynaecology, Santa Chiara Hospital, University of Pisa, Pisa, Italy, ffruzzi@tin.it.
Angelo CagnacciInstitute of Obstetrics and Gynecology, Department of Medical Area, University of Udine, Udine, Italy.
University of Pisa · ITUniversity of Udine · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveEstradiol (E2)-based hormonal contraceptives impact less than ethinylstradiol (EE) contraceptives on venous thromboembolism (VTE) in comparison to formulations with EE. STUDY

designIn this article, the pharamacologic data of EE and E2 were briefly reviewed, along with the induced biologic effect. These data were then related to a recent large international prospective, controlled, non-interventional cohort active surveillance study, on the cardiovascular risk of users of different types of combined estroprogestin contraceptive (CEPC).

resultsThe crude HR for E2-valerate (E2V)/dienogest vs other CEPCs with EE was 0.8 (95% CI, 0.4-1.6), but when the data were corrected for age, body mass index, duration of use, and family history of VTE, the corresponding adjusted HR was 0.5 (95% CI, 0.2-1.0). A comparison of the E2V/dienogest and EE/levonorgestrel groups showed that the two contraceptives induced a similar VTE risk with the crude and adjusted VTE HRs of 0.7 (95% CI, 0.3-1.8) and 0.5 (95% CI, 0.2-1.3), respectively. Similar results were obtained when the observation was prolonged to January 2017.

conclusionsThe reduced impact of E2 vs EE on coagulation translates into the epidemiologic evidence of a reduced number of events in E2V vs EE users, when progestins other than levonorgestrel are used. However, E2 may continue to negatively impact on the risk of VTE, and this should not be forgotten at the time of prescription. Family history of VTE or thrombophilia, age, and obesity are risk factors for VTE too. If these risk factors are not taken into consideration and excluded, they can overcome or hide the higher safety of E2 vs CEPCs with EE.

Indexed as

contraceptiondienogestestradiolestradiol valeratevenous thromboembolism

Identifiers

PMID30519125
PMCPMC6239102
OpenAlexW2901665003

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.