Scimago Journal & Country Rank

Cochrane Database of Systematic Reviews

Country United States  - SIR icon SIR Ranking of United States
H Index
Subject Area and CategoryMedicine
Medicine (miscellaneous)
Pharmacology (medical)
PublisherJohn Wiley & Sons Inc.
Publication typeJournals
Coverage1998, 2000-ongoing
Scope The Cochrane Database of Systematic Reviews (CDSR) is the leading resource for systematic reviews in health care. The CDSR includes all Cochrane Reviews (and protocols) prepared by Cochrane Review Groups in The Cochrane Collaboration. Each Cochrane Review is a peer-reviewed systematic review that has been prepared and supervised by a Cochrane Review Group (editorial team) in The Cochrane Collaboration according to the Cochrane Handbook for Systematic Reviews of Interventions or Cochrane Handbook for Diagnostic Test Accuracy Reviews.


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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)1999Q3
Medicine (miscellaneous)2000Q2
Medicine (miscellaneous)2001Q1
Medicine (miscellaneous)2002Q1
Medicine (miscellaneous)2003Q1
Medicine (miscellaneous)2004Q1
Medicine (miscellaneous)2005Q1
Medicine (miscellaneous)2006Q1
Medicine (miscellaneous)2007Q1
Medicine (miscellaneous)2008Q1
Medicine (miscellaneous)2009Q1
Medicine (miscellaneous)2010Q1
Medicine (miscellaneous)2011Q1
Medicine (miscellaneous)2012Q1
Medicine (miscellaneous)2013Q1
Medicine (miscellaneous)2014Q1
Medicine (miscellaneous)2015Q1
Medicine (miscellaneous)2016Q1
Medicine (miscellaneous)2017Q1
Medicine (miscellaneous)2018Q1
Pharmacology (medical)1999Q4
Pharmacology (medical)2000Q2
Pharmacology (medical)2001Q1
Pharmacology (medical)2002Q1
Pharmacology (medical)2003Q1
Pharmacology (medical)2004Q1
Pharmacology (medical)2005Q1
Pharmacology (medical)2006Q1
Pharmacology (medical)2007Q1
Pharmacology (medical)2008Q1
Pharmacology (medical)2009Q1
Pharmacology (medical)2010Q1
Pharmacology (medical)2011Q1
Pharmacology (medical)2012Q1
Pharmacology (medical)2013Q1
Pharmacology (medical)2014Q1
Pharmacology (medical)2015Q1
Pharmacology (medical)2016Q1
Pharmacology (medical)2017Q1
Pharmacology (medical)2018Q1

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)19990.000
Cites / Doc. (4 years)20000.500
Cites / Doc. (4 years)20012.344
Cites / Doc. (4 years)20022.618
Cites / Doc. (4 years)20033.473
Cites / Doc. (4 years)20043.768
Cites / Doc. (4 years)20054.297
Cites / Doc. (4 years)20064.780
Cites / Doc. (4 years)20074.434
Cites / Doc. (4 years)20084.188
Cites / Doc. (4 years)20094.458
Cites / Doc. (4 years)20104.241
Cites / Doc. (4 years)20114.502
Cites / Doc. (4 years)20125.353
Cites / Doc. (4 years)20136.600
Cites / Doc. (4 years)20146.455
Cites / Doc. (4 years)20155.782
Cites / Doc. (4 years)20165.179
Cites / Doc. (4 years)20174.894
Cites / Doc. (4 years)20183.747
Cites / Doc. (3 years)19990.000
Cites / Doc. (3 years)20000.500
Cites / Doc. (3 years)20012.344
Cites / Doc. (3 years)20022.623
Cites / Doc. (3 years)20033.474
Cites / Doc. (3 years)20043.843
Cites / Doc. (3 years)20054.365
Cites / Doc. (3 years)20064.903
Cites / Doc. (3 years)20074.413
Cites / Doc. (3 years)20083.961
Cites / Doc. (3 years)20094.086
Cites / Doc. (3 years)20103.719
Cites / Doc. (3 years)20114.543
Cites / Doc. (3 years)20125.544
Cites / Doc. (3 years)20137.749
Cites / Doc. (3 years)20146.110
Cites / Doc. (3 years)20155.441
Cites / Doc. (3 years)20164.543
Cites / Doc. (3 years)20174.804
Cites / Doc. (3 years)20183.537
Cites / Doc. (2 years)19990.000
Cites / Doc. (2 years)20000.500
Cites / Doc. (2 years)20012.350
Cites / Doc. (2 years)20022.625
Cites / Doc. (2 years)20033.057
Cites / Doc. (2 years)20043.962
Cites / Doc. (2 years)20054.360
Cites / Doc. (2 years)20064.775
Cites / Doc. (2 years)20074.234
Cites / Doc. (2 years)20083.422
Cites / Doc. (2 years)20093.451
Cites / Doc. (2 years)20103.409
Cites / Doc. (2 years)20114.587
Cites / Doc. (2 years)20126.695
Cites / Doc. (2 years)20137.332
Cites / Doc. (2 years)20145.494
Cites / Doc. (2 years)20154.366
Cites / Doc. (2 years)20164.186
Cites / Doc. (2 years)20174.391
Cites / Doc. (2 years)20183.218
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 Cites19990
Self Cites20000
Self Cites20015
Self Cites20023
Self Cites20033
Self Cites20043
Self Cites20053
Self Cites200684
Self Cites20070
Self Cites200811
Self Cites2009661
Self Cites201050
Self Cites201166
Self Cites2012185
Self Cites20131347
Self Cites20141477
Self Cites20151987
Self Cites20161468
Self Cites20171704
Self Cites2018764
Total Cites19990
Total Cites20002
Total Cites20012126
Total Cites20023310
Total Cites20035719
Total Cites20044197
Total Cites20055282
Total Cites20066443
Total Cites20077109
Total Cites20089074
Total Cites200911747
Total Cites201013131
Total Cites201114005
Total Cites201215080
Total Cites201318706
Total Cites201421508
Total Cites201523877
Total Cites201622995
Total Cites201722447
Total Cites201815706
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 document19990.000
External Cites per document20000.500
External Cites per document20012.338
External Cites per document20022.620
External Cites per document20033.473
External Cites per document20043.841
External Cites per document20054.363
External Cites per document20064.839
External Cites per document20074.413
External Cites per document20083.956
External Cites per document20093.856
External Cites per document20103.705
External Cites per document20114.521
External Cites per document20125.476
External Cites per document20137.191
External Cites per document20145.691
External Cites per document20154.989
External Cites per document20164.253
External Cites per document20174.439
External Cites per document20183.365
Cites per document19990.000
Cites per document20000.500
Cites per document20012.344
Cites per document20022.623
Cites per document20033.474
Cites per document20043.843
Cites per document20054.365
Cites per document20064.903
Cites per document20074.413
Cites per document20083.961
Cites per document20094.086
Cites per document20103.719
Cites per document20114.543
Cites per document20125.544
Cites per document20137.749
Cites per document20146.110
Cites per document20155.441
Cites per document20164.543
Cites per document20174.804
Cites per document20183.537
% 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 documents19990
Non-citable documents20000
Non-citable documents20010
Non-citable documents20020
Non-citable documents20030
Non-citable documents20040
Non-citable documents20050
Non-citable documents20060
Non-citable documents20071
Non-citable documents20081
Non-citable documents20091
Non-citable documents20100
Non-citable documents20110
Non-citable documents201234
Non-citable documents201342
Non-citable documents201466
Non-citable documents201549
Non-citable documents201651
Non-citable documents201737
Non-citable documents201825
Citable documents19993
Citable documents20004
Citable documents2001907
Citable documents20021262
Citable documents20031646
Citable documents20041092
Citable documents20051210
Citable documents20061314
Citable documents20071611
Citable documents20082291
Citable documents20092875
Citable documents20103531
Citable documents20113083
Citable documents20122720
Citable documents20132414
Citable documents20143520
Citable documents20154388
Citable documents20165062
Citable documents20174673
Citable documents20184440
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 documents19993
Uncited documents20003
Uncited documents2001248
Uncited documents2002350
Uncited documents2003283
Uncited documents2004163
Uncited documents2005147
Uncited documents2006132
Uncited documents2007293
Uncited documents2008749
Uncited documents20091083
Uncited documents20101559
Uncited documents20111153
Uncited documents2012753
Uncited documents2013236
Uncited documents2014923
Uncited documents20151379
Uncited documents20161873
Uncited documents20171622
Uncited documents20181617
Cited documents19990
Cited documents20001
Cited documents2001659
Cited documents2002912
Cited documents20031363
Cited documents2004929
Cited documents20051063
Cited documents20061182
Cited documents20071319
Cited documents20081543
Cited documents20091793
Cited documents20101972
Cited documents20111930
Cited documents20122001
Cited documents20132220
Cited documents20142663
Cited documents20153058
Cited documents20163240
Cited documents20173088
Cited documents20182848
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