Scimago Journal & Country Rank

BJOG: An International Journal of Obstetrics and Gynaecology


United Kingdom

Universities and research institutions in United Kingdom

Subject Area and Category


Wiley-Blackwell Publishing Ltd



Publication type



14700328, 14710528


1902-1915, 1921-2020



How to publish in this journal


BJOG is an editorially independent publication owned by the Royal College of Obstetricians and Gynaecologists (RCOG). The Journal publishes original, peer-reviewed work in all areas of obstetrics and gynaecology, including contraception, urogynaecology, fertility, oncology and clinical practice. Its aim is to publish the highest quality medical research in women's health, worldwide. Join the conversation about this journal

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Obstetrics and Gynecology1999Q1
Obstetrics and Gynecology2000Q1
Obstetrics and Gynecology2001Q1
Obstetrics and Gynecology2002Q1
Obstetrics and Gynecology2003Q1
Obstetrics and Gynecology2004Q1
Obstetrics and Gynecology2005Q1
Obstetrics and Gynecology2006Q1
Obstetrics and Gynecology2007Q1
Obstetrics and Gynecology2008Q1
Obstetrics and Gynecology2009Q1
Obstetrics and Gynecology2010Q1
Obstetrics and Gynecology2011Q1
Obstetrics and Gynecology2012Q1
Obstetrics and Gynecology2013Q1
Obstetrics and Gynecology2014Q1
Obstetrics and Gynecology2015Q1
Obstetrics and Gynecology2016Q1
Obstetrics and Gynecology2017Q1
Obstetrics and Gynecology2018Q1
Obstetrics and Gynecology2019Q1

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)19992.734
Cites / Doc. (4 years)20002.680
Cites / Doc. (4 years)20013.010
Cites / Doc. (4 years)20022.659
Cites / Doc. (4 years)20032.609
Cites / Doc. (4 years)20042.946
Cites / Doc. (4 years)20053.008
Cites / Doc. (4 years)20063.249
Cites / Doc. (4 years)20073.397
Cites / Doc. (4 years)20083.667
Cites / Doc. (4 years)20094.317
Cites / Doc. (4 years)20104.491
Cites / Doc. (4 years)20114.697
Cites / Doc. (4 years)20124.935
Cites / Doc. (4 years)20134.991
Cites / Doc. (4 years)20144.833
Cites / Doc. (4 years)20154.819
Cites / Doc. (4 years)20164.802
Cites / Doc. (4 years)20174.515
Cites / Doc. (4 years)20184.689
Cites / Doc. (4 years)20194.694
Cites / Doc. (3 years)19992.734
Cites / Doc. (3 years)20002.675
Cites / Doc. (3 years)20012.791
Cites / Doc. (3 years)20022.345
Cites / Doc. (3 years)20032.682
Cites / Doc. (3 years)20042.946
Cites / Doc. (3 years)20053.018
Cites / Doc. (3 years)20063.165
Cites / Doc. (3 years)20073.430
Cites / Doc. (3 years)20083.864
Cites / Doc. (3 years)20094.420
Cites / Doc. (3 years)20104.395
Cites / Doc. (3 years)20114.730
Cites / Doc. (3 years)20124.805
Cites / Doc. (3 years)20135.005
Cites / Doc. (3 years)20144.785
Cites / Doc. (3 years)20154.637
Cites / Doc. (3 years)20164.632
Cites / Doc. (3 years)20174.470
Cites / Doc. (3 years)20184.529
Cites / Doc. (3 years)20194.759
Cites / Doc. (2 years)19992.776
Cites / Doc. (2 years)20002.363
Cites / Doc. (2 years)20012.272
Cites / Doc. (2 years)20022.245
Cites / Doc. (2 years)20032.438
Cites / Doc. (2 years)20042.874
Cites / Doc. (2 years)20052.691
Cites / Doc. (2 years)20063.080
Cites / Doc. (2 years)20073.591
Cites / Doc. (2 years)20083.656
Cites / Doc. (2 years)20094.337
Cites / Doc. (2 years)20104.303
Cites / Doc. (2 years)20114.344
Cites / Doc. (2 years)20124.687
Cites / Doc. (2 years)20134.896
Cites / Doc. (2 years)20144.496
Cites / Doc. (2 years)20154.429
Cites / Doc. (2 years)20164.526
Cites / Doc. (2 years)20174.138
Cites / Doc. (2 years)20184.503
Cites / Doc. (2 years)20194.398
Total Cites 

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Self Cites1999243
Self Cites2000213
Self Cites2001133
Self Cites2002109
Self Cites2003130
Self Cites2004117
Self Cites2005135
Self Cites2006146
Self Cites2007172
Self Cites2008188
Self Cites2009204
Self Cites2010160
Self Cites2011167
Self Cites2012142
Self Cites2013131
Self Cites2014130
Self Cites2015142
Self Cites2016168
Self Cites2017141
Self Cites2018133
Self Cites2019125
Total Cites19992064
Total Cites20002172
Total Cites20012305
Total Cites20021986
Total Cites20032081
Total Cites20042165
Total Cites20052297
Total Cites20062621
Total Cites20072878
Total Cites20083064
Total Cites20093032
Total Cites20102896
Total Cites20112956
Total Cites20123157
Total Cites20133118
Total Cites20143043
Total Cites20152954
Total Cites20163071
Total Cites20173214
Total Cites20183211
Total Cites20193193
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

External Cites per document19992.412
External Cites per document20002.413
External Cites per document20012.630
External Cites per document20022.216
External Cites per document20032.514
External Cites per document20042.786
External Cites per document20052.841
External Cites per document20062.989
External Cites per document20073.225
External Cites per document20083.627
External Cites per document20094.122
External Cites per document20104.152
External Cites per document20114.462
External Cites per document20124.589
External Cites per document20134.795
External Cites per document20144.580
External Cites per document20154.414
External Cites per document20164.379
External Cites per document20174.274
External Cites per document20184.341
External Cites per document20194.572
Cites per document19992.734
Cites per document20002.675
Cites per document20012.791
Cites per document20022.345
Cites per document20032.682
Cites per document20042.946
Cites per document20053.018
Cites per document20063.165
Cites per document20073.430
Cites per document20083.864
Cites per document20094.420
Cites per document20104.395
Cites per document20114.730
Cites per document20124.805
Cites per document20135.005
Cites per document20144.785
Cites per document20154.637
Cites per document20164.632
Cites per document20174.470
Cites per document20184.529
Cites per document20194.759
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Non-citable documents1999499
Non-citable documents2000397
Non-citable documents2001310
Non-citable documents2002180
Non-citable documents2003167
Non-citable documents2004145
Non-citable documents2005161
Non-citable documents2006171
Non-citable documents2007193
Non-citable documents2008286
Non-citable documents2009422
Non-citable documents2010483
Non-citable documents2011466
Non-citable documents2012411
Non-citable documents2013397
Non-citable documents2014415
Non-citable documents2015538
Non-citable documents2016646
Non-citable documents2017839
Non-citable documents2018866
Non-citable documents2019953
Citable documents1999755
Citable documents2000812
Citable documents2001826
Citable documents2002847
Citable documents2003776
Citable documents2004735
Citable documents2005761
Citable documents2006828
Citable documents2007839
Citable documents2008793
Citable documents2009686
Citable documents2010659
Citable documents2011625
Citable documents2012657
Citable documents2013623
Citable documents2014636
Citable documents2015637
Citable documents2016663
Citable documents2017719
Citable documents2018709
Citable documents2019671
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Uncited documents1999643
Uncited documents2000604
Uncited documents2001543
Uncited documents2002459
Uncited documents2003368
Uncited documents2004296
Uncited documents2005332
Uncited documents2006317
Uncited documents2007303
Uncited documents2008377
Uncited documents2009453
Uncited documents2010505
Uncited documents2011481
Uncited documents2012450
Uncited documents2013435
Uncited documents2014462
Uncited documents2015535
Uncited documents2016636
Uncited documents2017824
Uncited documents2018850
Uncited documents2019927
Cited documents1999611
Cited documents2000605
Cited documents2001593
Cited documents2002568
Cited documents2003575
Cited documents2004584
Cited documents2005590
Cited documents2006682
Cited documents2007729
Cited documents2008702
Cited documents2009655
Cited documents2010637
Cited documents2011610
Cited documents2012618
Cited documents2013585
Cited documents2014589
Cited documents2015640
Cited documents2016673
Cited documents2017734
Cited documents2018725
Cited documents2019697
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