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Journal profile · Medicine

BJOG An International Journal of Obstetrics & Gynaecology

Wiley · United Kingdom · ISSN 0306-5456, 1365-215X

ITS Journal Score80.6
Global rank#1,968
Rank in Medicine#345 of 8,849
h-index276
Open access 2021–202560%

Overview

BJOG An International Journal of Obstetrics & Gynaecology, published by Wiley (United Kingdom), published 2,020 papers in 2021–2025, and these papers have received 17,114 citations so far. Its h-index is 276 and its two-year mean citedness is 2.94. On the ITS Journal Score it ranks #1,968 of 62,158 ranked journals and #345 of 8,849 in Medicine.

Key figures

Papers 2021–20252,020
Citations 2021–202517,114
Citations per paper8.5
h-index276
i10-index12,376
2-year mean citedness2.94
Open-access share60%
Change in papers (2024-25 vs 2021-22)-0.3%
Citation impact trend-42.4%
Article fee (APC)Fee not recorded in our data

Citations are those received so far by the papers published in these years, so the most recent years have had less time to collect them. Two-year mean citedness is OpenAlex's measure of how often recent papers are cited; it is similar in idea to, but not the same as, an impact factor. Citation impact trend compares how often a journal's 2024-25 papers are cited with how often its 2021-22 papers were cited, each measured against all ranked journals' papers of the same years, so newer papers are not at a disadvantage. "Not enough papers" or "Not enough data" means fewer than 50 papers in one of the two-year periods (or fewer than 50 citations to the earlier papers). Values above +300% or below -90% are shown as "+300% or more" or "-90% or less": such extreme values come from very low citation counts for the earlier papers.

Papers and citations by year

YearPapersCitations so far to that year's papersOpen-access papers
202055811,313221
20214536,500186
20223534,294152
20234103,375313
20243282,018228
2025476927342

What it publishes

The leading research topics of its papers (OpenAlex topic classification). Select a topic to find other journals that publish on it.

Similar journals

Ranked journals that publish on the same topics.

JournalFieldScorePapers 2021–2025Open access
Hypertension in PregnancyMedicine67.313363%
BirthMedicine72.347166%
Pregnancy HypertensionMedicine62.997024%
PlacentaMedicine71.92,86320%
Women and BirthMedicine69.31,15445%
BMC Pregnancy and ChildbirthMedicine79.85,076100%
American Journal of Obstetrics & Gynecology MFMMedicine70.91,47635%
AJOG Global ReportsMedicine64.1581100%

Compare with similar journals (side by side with the two closest journals above)

Identity and sources

Figures come from OpenAlex (papers, citations, h-index, topics), Crossref (ISSN check) and DOAJ (open-access listing and fees). They change as records are corrected, so treat them as a dated snapshot. This page does not state whether the journal is indexed in Scopus, Web of Science or PubMed.

Questions

What is the ITS Journal Score of BJOG An International Journal of Obstetrics & Gynaecology?

It is 80.6 out of 100, which places it #1,968 among ranked journals. The score combines citation impact (45%), h-index (35%) and size (20%) from open OpenAlex data.

What is the impact factor of BJOG An International Journal of Obstetrics & Gynaecology?

This site does not publish Journal Impact Factors, which belong to Clarivate. As an open alternative, its two-year mean citedness in OpenAlex is 2.94.

Is BJOG An International Journal of Obstetrics & Gynaecology open access?

60% of its papers from 2021–2025 are recorded as open access.

Does BJOG An International Journal of Obstetrics & Gynaecology charge a publication fee?

The fee is not recorded in our data. This does not mean the journal is free. Check the journal's own website for its current fees.

Transparent methodology

How the ITS Journal Score works

One formula applies to every ranked journal, using open data from OpenAlex: 45% citation impact, 35% h-index and 20% size (papers published 2021–2025). Citation impact is the smaller of the journal's two-year mean citedness and its five-year citations per paper, so a journal whose output collapsed cannot jump to the top on old citations. Each part is half a percentile and half a log-scaled value, so the very top is still separated. Growth and open-access share are shown separately and are not part of the score.

A journal is ranked only if it published at least 50 papers in 2021–2025 and was active in at least five of the last six years. Field rankings compare a journal only with journals in the same field; the field is the OpenAlex field with most of the journal's recent papers, or "Multidisciplinary" when no field has 30% of them.

What this is not: the ITS Journal Score is not a Journal Impact Factor, CiteScore or SJR, and this site does not say whether a journal is indexed in Scopus, Web of Science or PubMed. Always confirm aims and scope, indexing, peer review and fees on the journal's own website before you submit.