Scimago Journal & Country Rank

BMJ Openopen access

Country United Kingdom  - SIR icon SIR Ranking of United Kingdom
69
H Index
Subject Area and CategoryMedicine
Medicine (miscellaneous)
PublisherBMJ Publishing Group
Publication typeJournals
ISSN20446055
Coverage2011-ongoing
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 We do not publish studies conducted in animals, laboratory studies not linked to patient outcomes, papers reporting solely physiological or biomechanical results from healthy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.

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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
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
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)20121.889
Cites / Doc. (4 years)20132.499
Cites / Doc. (4 years)20142.891
Cites / Doc. (4 years)20153.154
Cites / Doc. (4 years)20163.035
Cites / Doc. (4 years)20172.972
Cites / Doc. (4 years)20182.825
Cites / Doc. (3 years)20110.000
Cites / Doc. (3 years)20121.889
Cites / Doc. (3 years)20132.499
Cites / Doc. (3 years)20142.891
Cites / Doc. (3 years)20153.150
Cites / Doc. (3 years)20162.935
Cites / Doc. (3 years)20172.824
Cites / Doc. (3 years)20182.703
Cites / Doc. (2 years)20110.000
Cites / Doc. (2 years)20121.889
Cites / Doc. (2 years)20132.499
Cites / Doc. (2 years)20142.844
Cites / Doc. (2 years)20153.022
Cites / Doc. (2 years)20162.625
Cites / Doc. (2 years)20172.631
Cites / Doc. (2 years)20182.418
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 Cites201214
Self Cites201372
Self Cites2014173
Self Cites2015315
Self Cites2016484
Self Cites2017770
Self Cites2018718
Total Cites20110
Total Cites2012204
Total Cites20131904
Total Cites20144972
Total Cites20158644
Total Cites201610374
Total Cites201712795
Total Cites201816255
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 document20121.759
External Cites per document20132.404
External Cites per document20142.790
External Cites per document20153.035
External Cites per document20162.799
External Cites per document20172.654
External Cites per document20182.584
Cites per document20110.000
Cites per document20121.889
Cites per document20132.499
Cites per document20142.891
Cites per document20153.150
Cites per document20162.935
Cites per document20172.824
Cites per document20182.703
% 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
201129.36
201229.22
201329.25
201432.41
201527.26
201632.20
201732.66
201834.23
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 documents20121
Non-citable documents201328
Non-citable documents201465
Non-citable documents201592
Non-citable documents2016103
Non-citable documents2017145
Non-citable documents2018161
Citable documents20110
Citable documents2012108
Citable documents2013762
Citable documents20141720
Citable documents20152744
Citable documents20163534
Citable documents20174531
Citable documents20186013
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 documents2013231
Uncited documents2014421
Uncited documents2015602
Uncited documents2016831
Uncited documents20171074
Uncited documents20181627
Cited documents20110
Cited documents201279
Cited documents2013559
Cited documents20141364
Cited documents20152234
Cited documents20162806
Cited documents20173602
Cited documents20184547
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