Scimago Journal & Country Rank

BMJ Openopen access

Country

United Kingdom

Universities and research institutions in United Kingdom

Subject Area and Category

Publisher

BMJ Publishing Group

BMJ Group in Scimago Institutions Rankings

H-Index

103

Publication type

Journals

ISSN

20446055

Coverage

2011-2020

Information

Homepage

How to publish in this journal

info.bmjopen@bmj.com

Scope

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 We do not publish studies conducted in animals, laboratory studies not linked to patient outcomes, papers reporting solely physiological or biomechanical results from healthy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

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.

CategoryYearQuartile
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
SJR

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.

YearSJR
20120.495
20131.137
20141.404
20151.528
20161.474
20171.372
20181.321
20191.247
20201.132
Total Documents

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

YearDocuments
2011106
2012654
2013957
20141129
20151439
20161955
20172605
20182535
20194198
20203588
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)20121.858
Cites / Doc. (4 years)20132.449
Cites / Doc. (4 years)20142.828
Cites / Doc. (4 years)20153.130
Cites / Doc. (4 years)20163.046
Cites / Doc. (4 years)20172.961
Cites / Doc. (4 years)20182.839
Cites / Doc. (4 years)20193.035
Cites / Doc. (4 years)20203.113
Cites / Doc. (3 years)20110.000
Cites / Doc. (3 years)20121.858
Cites / Doc. (3 years)20132.449
Cites / Doc. (3 years)20142.828
Cites / Doc. (3 years)20153.126
Cites / Doc. (3 years)20162.950
Cites / Doc. (3 years)20172.812
Cites / Doc. (3 years)20182.706
Cites / Doc. (3 years)20192.900
Cites / Doc. (3 years)20202.870
Cites / Doc. (2 years)20110.000
Cites / Doc. (2 years)20121.858
Cites / Doc. (2 years)20132.449
Cites / Doc. (2 years)20142.788
Cites / Doc. (2 years)20153.004
Cites / Doc. (2 years)20162.639
Cites / Doc. (2 years)20172.604
Cites / Doc. (2 years)20182.414
Cites / Doc. (2 years)20192.566
Cites / Doc. (2 years)20202.482
Total Cites 
Self-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.

CitesYearValue
Self Cites20110
Self Cites201213
Self Cites201371
Self Cites2014171
Self Cites2015312
Self Cites2016474
Self Cites2017745
Self Cites2018752
Self Cites20191290
Self Cites20201006
Total Cites20110
Total Cites2012197
Total Cites20131861
Total Cites20144855
Total Cites20158564
Total Cites201610400
Total Cites201712717
Total Cites201816231
Total Cites201920576
Total Cites202026797
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.

CitesYearValue
External Cites per document20110
External Cites per document20121.736
External Cites per document20132.355
External Cites per document20142.728
External Cites per document20153.012
External Cites per document20162.816
External Cites per document20172.647
External Cites per document20182.580
External Cites per document20192.718
External Cites per document20202.762
Cites per document20110.000
Cites per document20121.858
Cites per document20132.449
Cites per document20142.828
Cites per document20153.126
Cites per document20162.950
Cites per document20172.812
Cites per document20182.706
Cites per document20192.900
Cites per document20202.870
% 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
201130.19
201230.43
201330.20
201433.13
201527.87
201633.15
201732.25
201834.52
201934.09
202036.90
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.

DocumentsYearValue
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
Citable documents20110
Citable documents2012106
Citable documents2013760
Citable documents20141717
Citable documents20152740
Citable documents20163525
Citable documents20174523
Citable documents20185999
Citable documents20197095
Citable documents20209337
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.

DocumentsYearValue
Uncited documents20110
Uncited documents201230
Uncited documents2013208
Uncited documents2014377
Uncited documents2015539
Uncited documents2016738
Uncited documents2017949
Uncited documents20181464
Uncited documents20191588
Uncited documents20202176
Cited documents20110
Cited documents201276
Cited documents2013552
Cited documents20141340
Cited documents20152201
Cited documents20162787
Cited documents20173574
Cited documents20184535
Cited documents20195507
Cited documents20207162
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Metrics based on Scopus® data as of April 2021
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