Scimago Journal & Country Rank

BMJ Openopen access


United Kingdom

Universities and research institutions in United Kingdom

Subject Area and Category


BMJ Publishing Group

BMJ Group in Scimago Institutions Rankings



Publication type








How to publish in this journal


BMJ Open is a medical journal. We consider papers addressing research questions in clinical medicine, public health and epidemiology. We also welcome studies in health services research, health economics, surgery, qualitative research, research methods, medical education, medical publishing and any other field that directly addresses patient outcomes or the practice and delivery of healthcare. Our focus is on research that is relevant to patients and clinicians. We do not publish studies conducted in animals, laboratory studies not linked to patient outcomes, papers reporting solely physiological or biomechanical results from healthy participants, anatomy, cell biology or non-clinical psychology. All research study types are considered, from study protocols through phase I trials to meta-analyses. This includes specialist studies and studies reporting negative results. 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.

Medicine (miscellaneous)2012Q2
Medicine (miscellaneous)2013Q1
Medicine (miscellaneous)2014Q1
Medicine (miscellaneous)2015Q1
Medicine (miscellaneous)2016Q1
Medicine (miscellaneous)2017Q1
Medicine (miscellaneous)2018Q1
Medicine (miscellaneous)2019Q1
Medicine (miscellaneous)2020Q1
Medicine (miscellaneous)2021Q1

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.

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

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)20110.000
Cites / Doc. (4 years)20121.896
Cites / Doc. (4 years)20132.461
Cites / Doc. (4 years)20142.844
Cites / Doc. (4 years)20153.169
Cites / Doc. (4 years)20163.075
Cites / Doc. (4 years)20172.992
Cites / Doc. (4 years)20182.879
Cites / Doc. (4 years)20193.058
Cites / Doc. (4 years)20203.012
Cites / Doc. (4 years)20213.330
Cites / Doc. (3 years)20110.000
Cites / Doc. (3 years)20121.896
Cites / Doc. (3 years)20132.461
Cites / Doc. (3 years)20142.844
Cites / Doc. (3 years)20153.166
Cites / Doc. (3 years)20162.977
Cites / Doc. (3 years)20172.839
Cites / Doc. (3 years)20182.745
Cites / Doc. (3 years)20192.922
Cites / Doc. (3 years)20202.779
Cites / Doc. (3 years)20213.106
Cites / Doc. (2 years)20110.000
Cites / Doc. (2 years)20121.896
Cites / Doc. (2 years)20132.461
Cites / Doc. (2 years)20142.804
Cites / Doc. (2 years)20153.041
Cites / Doc. (2 years)20162.663
Cites / Doc. (2 years)20172.629
Cites / Doc. (2 years)20182.453
Cites / Doc. (2 years)20192.585
Cites / Doc. (2 years)20202.401
Cites / Doc. (2 years)20212.860
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 Cites20110
Self Cites201213
Self Cites201371
Self Cites2014171
Self Cites2015313
Self Cites2016474
Self Cites2017746
Self Cites2018753
Self Cites20191290
Self Cites20201005
Self Cites20211300
Total Cites20110
Total Cites2012201
Total Cites20131868
Total Cites20144880
Total Cites20158671
Total Cites201610496
Total Cites201712848
Total Cites201816475
Total Cites201920734
Total Cites202025945
Total Cites202132049
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 document20110
External Cites per document20121.774
External Cites per document20132.368
External Cites per document20142.744
External Cites per document20153.051
External Cites per document20162.842
External Cites per document20172.674
External Cites per document20182.620
External Cites per document20192.740
External Cites per document20202.671
External Cites per document20212.981
Cites per document20110.000
Cites per document20121.896
Cites per document20132.461
Cites per document20142.844
Cites per document20153.166
Cites per document20162.977
Cites per document20172.839
Cites per document20182.745
Cites per document20192.922
Cites per document20202.779
Cites per document20213.106
% 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 documents20110
Non-citable documents20120
Non-citable documents20130
Non-citable documents20140
Non-citable documents20150
Non-citable documents20160
Non-citable documents20170
Non-citable documents20180
Non-citable documents20190
Non-citable documents20201
Non-citable documents20212
Citable documents20110
Citable documents2012106
Citable documents2013759
Citable documents20141716
Citable documents20152739
Citable documents20163526
Citable documents20174525
Citable documents20186001
Citable documents20197096
Citable documents20209336
Citable documents202110316
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 documents20110
Uncited documents201229
Uncited documents2013207
Uncited documents2014371
Uncited documents2015533
Uncited documents2016731
Uncited documents2017940
Uncited documents20181436
Uncited documents20191567
Uncited documents20202232
Uncited documents20212316
Cited documents20110
Cited documents201277
Cited documents2013552
Cited documents20141345
Cited documents20152206
Cited documents20162795
Cited documents20173585
Cited documents20184565
Cited documents20195529
Cited documents20207105
Cited documents20218002
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