Scimago Journal & Country Rank

BMJ Openopen access


United Kingdom

Universities and research institutions in United Kingdom

Subject Area and Category


BMJ Publishing Group

BMJ Publishing 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 We do not publish studies conducted in animals, laboratory studies not linked to patient outcomes, papers reporting solely physiological or biomechanical results from healthy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

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)20110.000
Cites / Doc. (4 years)20121.925
Cites / Doc. (4 years)20132.512
Cites / Doc. (4 years)20142.885
Cites / Doc. (4 years)20153.164
Cites / Doc. (4 years)20163.063
Cites / Doc. (4 years)20173.006
Cites / Doc. (4 years)20182.885
Cites / Doc. (4 years)20193.181
Cites / Doc. (3 years)20110.000
Cites / Doc. (3 years)20121.925
Cites / Doc. (3 years)20132.512
Cites / Doc. (3 years)20142.885
Cites / Doc. (3 years)20153.157
Cites / Doc. (3 years)20162.967
Cites / Doc. (3 years)20172.857
Cites / Doc. (3 years)20182.760
Cites / Doc. (3 years)20193.049
Cites / Doc. (2 years)20110.000
Cites / Doc. (2 years)20121.925
Cites / Doc. (2 years)20132.512
Cites / Doc. (2 years)20142.836
Cites / Doc. (2 years)20153.027
Cites / Doc. (2 years)20162.659
Cites / Doc. (2 years)20172.662
Cites / Doc. (2 years)20182.463
Cites / Doc. (2 years)20192.712
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 Cites201214
Self Cites201372
Self Cites2014173
Self Cites2015315
Self Cites2016485
Self Cites2017770
Self Cites2018773
Self Cites20191339
Total Cites20110
Total Cites2012204
Total Cites20131909
Total Cites20144954
Total Cites20158650
Total Cites201610463
Total Cites201712925
Total Cites201816558
Total Cites201921636
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 document20121.792
External Cites per document20132.417
External Cites per document20142.785
External Cites per document20153.042
External Cites per document20162.830
External Cites per document20172.687
External Cites per document20182.631
External Cites per document20192.860
Cites per document20110.000
Cites per document20121.925
Cites per document20132.512
Cites per document20142.885
Cites per document20153.157
Cites per document20162.967
Cites per document20172.857
Cites per document20182.760
Cites per document20193.049
% 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 documents20123
Non-citable documents201330
Non-citable documents201468
Non-citable documents201591
Non-citable documents2016106
Non-citable documents2017147
Non-citable documents2018206
Non-citable documents2019253
Citable documents20110
Citable documents2012106
Citable documents2013760
Citable documents20141717
Citable documents20152740
Citable documents20163526
Citable documents20174524
Citable documents20186000
Citable documents20197096
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 documents201230
Uncited documents2013228
Uncited documents2014420
Uncited documents2015596
Uncited documents2016822
Uncited documents20171059
Uncited documents20181603
Uncited documents20191705
Cited documents20110
Cited documents201279
Cited documents2013562
Cited documents20141365
Cited documents20152235
Cited documents20162810
Cited documents20173612
Cited documents20184603
Cited documents20195644
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