Evidence map›Paper›PMID 32784203›Full record

ArticleInternational journal of gynecological cancer : official journal of the International Gynecological Cancer Society2020

Exploring international differences in ovarian cancer treatment: a comparison of clinical practice guidelines and patterns of care.

Charles H Norell, John Butler, Rhonda Farrell, Alon Altman, James Bentley, Citadel J Cabasag, Paul A Cohen, Scott Fegan, Michael Fung-Kee-Fung, Charlie Gourley and 13 more

Open access · hybridAbstract readComparative Study
In one paragraph

Article in International journal of gynecological cancer : official journal of the International Gynecological Cancer Society, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
4.2field-weighted citation impact, top 6% 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 35 citations in OpenAlex.

  1. Guideline
  2. Pooled it
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  5. Worldwide barriers of optimal surgical care provision in advanced ovarian cancer.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025
    Review
  6. Article
  7. Review
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  9. Exploring international differences in ovarian cancer care: a survey report on global patterns of care, current practices, and barriers.International journal of gynecological cancer : official journal of the International Gynecological Cancer Society · 2023
    Article
  10. Article
  11. Article
  12. Article
  13. Review
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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

23 authors at 19 institutions in 10 countries.

Charles H NorellInternational Cancer Benchmarking Partnership (ICBP), Policy & Information, Cancer Research UK, London, UK ICBP@cancer.org.uk.
John ButlerInternational Cancer Benchmarking Partnership (ICBP), Policy & Information, Cancer Research UK, London, UK.
Rhonda FarrellGynaecological Oncology Department, Chris O'Brien Lifehouse, Camperdown, New South Wales, Australia.
Alon AltmanDepartment of Gynecologic Oncology, University of Manitoba, Winnipeg, Manitoba, Canada.
James BentleyDepartment of Obstetrics and Gynaecology, Dalhousie University, Halifax, Nova Scotia, Canada.
Citadel J CabasagSection of Cancer Surveillance, International Agency for Research on Cancer, Lyon, France.
Paul A CohenDepartment of Gynaecological Oncology, St John of God Health Care, West Perth, Ontario, Australia.ORCID 0000-0002-4860-9232
Scott FeganDepartment of Obstetrics and Gynaecology, NHS Lothian, Edinburgh, UK.
Michael Fung-Kee-FungDepartment of Obstetrics, Gynaecology and Surgery, University of Ottawa, Ottawa, Ontario, Canada.
Charlie GourleyCancer Research UK Edinburgh Centre, The University of Edinburgh, Edinburgh, Scotland, UK.
Neville F HackerGynaecological Cancer Centre, Royal Hospital for Women, Randwick, New South Wales, Australia.
Louise HannaDepartment of Oncology, Velindre Cancer Centre, Cardiff, Wales, UK.
Claus Kim HøgdallGynecologic Department, The Juliane Marie Centre, Copenhagen, Denmark.
Gunnar KristensenDepartment of Gynecologic Oncology and Institute for Cancer Genetics and Informatics, Oslo University Hospital, Oslo, Norway.
Janice KwonDepartment of Obstetrics and Gynaecology, Vancouver General Hospital, Vancouver, British Columbia, Canada.
Orla McNallyOncology and Dysplasia Service, Royal Women's Hospital, Parkville, Victoria, Australia.
Gregg NelsonDepartment of Oncology, Tom Baker Cancer Centre, Calgary, Alberta, Canada.
Andy NordinDepartment of Gynaecological Oncology, East Kent Hospitals University NHS Foundation Trust, Canterbury, UK.
Dearbhaile O'DonnellDepartment of Medical Oncology, St. James's Hospital, Dublin, Ireland.
Tine SchnackDepartment of Gynaecology, Copenhagen University Hospital, Copenhagen, Denmark.
Peter H SykesDepartment of Obstetrics and Gynaecology, University of Otago, Dunedin, New Zealand.
Ewa ZotowPolicy & Information, Cancer Research UK, London, UK.
Samantha HarrisonPolicy & Information, Cancer Research UK, London, UK.
Cancer Research UK · GBCentre international de recherche sur le cancer · FRChris O’Brien Lifehouse · AUCopenhagen University Hospital · DKDalhousie University · CAEast Kent Hospitals University NHS Foundation Trust · GBEdinburgh Cancer Research · GBNHS Lothian · GBOslo University Hospital · NORoyal Hospital for Women · AURoyal Marsden NHS Foundation Trust · GBRoyal Women's Hospital · AUSt. James's Hospital · IESt John of God Hospital · AUUniversity of Manitoba · CAUniversity of Otago · NZUniversity of Ottawa · CAVancouver General Hospital · CAVelindre Cancer Centre · GB

Funding

World Health Organization 001
6 · The paper itself

Abstract

introductionThe International Cancer Benchmarking Partnership demonstrated international differences in ovarian cancer survival, particularly for women aged 65-74 with advanced disease. These findings suggest differences in treatment could be contributing to survival disparities.

objectiveTo compare clinical practice guidelines and patterns of care across seven high-income countries.

methodsA comparison of guidelines was performed and validated by a clinical working group. To explore clinical practice, a patterns of care survey was developed. A questionnaire regarding management and potential health system-related barriers to providing treatment was emailed to gynecological specialists. Guideline and survey results were crudely compared with 3-year survival by 'distant' stage using Spearman's rho.

resultsTwenty-seven guidelines were compared, and 119 clinicians completed the survey. Guideline-related measures varied between countries but did not correlate with survival internationally. Guidelines were consistent for surgical recommendations of either primary debulking surgery or neoadjuvant chemotherapy followed by interval debulking surgery with the aim of complete cytoreduction. Reported patterns of surgical care varied internationally, including for rates of primary versus interval debulking, extensive/'ultra-radical' surgery, and perceived barriers to optimal cytoreduction. Comparison showed that willingness to undertake extensive surgery correlated with survival across countries (r DISCUSSION: Findings suggest international variations in ovarian cancer treatment. Characteristics relating to countries with higher stage-specific survival included higher reported rates of primary surgery; willingness to undertake extensive/ultra-radical procedures; greater access to high-cost drugs; and auditing.

Indexed as

Practice Guidelines as TopicAdultAgedAustraliaCanadaCarcinoma, Ovarian EpithelialEuropeFemaleGynecologyHealth Services AccessibilityHumansMedical OncologyMiddle AgedNew ZealandOvarian NeoplasmsSurveys and Questionnairesmedical oncologyovarian cancersurgerysurgical oncology

Identifiers

PMID32784203
PMCPMC7656152
OpenAlexW3048693593

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.