Scimago Journal & Country Rank

JAMA - Journal of the American Medical Association

CountryUnited States
549
H Index
Subject Area and CategoryMedicine
Medicine (miscellaneous)
PublisherAmerican Medical Association
Publication typeJournals
ISSN00987484
Coverage1909, 1925, 1928-1929, 1935-1938, 1942, 1945-ongoing
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)1999Q1
Medicine (miscellaneous)2000Q1
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
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
19993.790
20003.996
20013.879
20023.687
20034.225
20045.388
20056.090
20066.777
20076.763
20086.597
20095.943
20105.837
20115.902
20125.943
20136.277
20146.056
20156.440
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)19997.568
Cites / Doc. (4 years)20008.396
Cites / Doc. (4 years)20019.053
Cites / Doc. (4 years)20028.894
Cites / Doc. (4 years)200310.125
Cites / Doc. (4 years)200411.656
Cites / Doc. (4 years)200513.983
Cites / Doc. (4 years)200616.131
Cites / Doc. (4 years)200715.873
Cites / Doc. (4 years)200815.757
Cites / Doc. (4 years)200915.380
Cites / Doc. (4 years)201015.110
Cites / Doc. (4 years)201114.826
Cites / Doc. (4 years)201214.445
Cites / Doc. (4 years)201313.658
Cites / Doc. (4 years)201412.495
Cites / Doc. (4 years)201511.465
Cites / Doc. (3 years)19997.568
Cites / Doc. (3 years)20008.230
Cites / Doc. (3 years)20018.957
Cites / Doc. (3 years)20028.504
Cites / Doc. (3 years)200310.141
Cites / Doc. (3 years)200412.759
Cites / Doc. (3 years)200515.462
Cites / Doc. (3 years)200616.298
Cites / Doc. (3 years)200715.571
Cites / Doc. (3 years)200815.614
Cites / Doc. (3 years)200915.158
Cites / Doc. (3 years)201014.544
Cites / Doc. (3 years)201114.699
Cites / Doc. (3 years)201214.758
Cites / Doc. (3 years)201313.441
Cites / Doc. (3 years)201412.020
Cites / Doc. (3 years)201511.419
Cites / Doc. (2 years)19997.157
Cites / Doc. (2 years)20007.685
Cites / Doc. (2 years)20018.230
Cites / Doc. (2 years)20027.951
Cites / Doc. (2 years)200310.722
Cites / Doc. (2 years)200414.138
Cites / Doc. (2 years)200515.271
Cites / Doc. (2 years)200615.721
Cites / Doc. (2 years)200714.820
Cites / Doc. (2 years)200815.315
Cites / Doc. (2 years)200913.832
Cites / Doc. (2 years)201014.165
Cites / Doc. (2 years)201115.061
Cites / Doc. (2 years)201214.513
Cites / Doc. (2 years)201312.292
Cites / Doc. (2 years)201411.636
Cites / Doc. (2 years)201511.297
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 Cites1999437
Self Cites2000436
Self Cites2001508
Self Cites2002549
Self Cites2003598
Self Cites2004480
Self Cites2005460
Self Cites2006569
Self Cites2007496
Self Cites2008385
Self Cites2009443
Self Cites2010413
Self Cites2011360
Self Cites2012345
Self Cites2013373
Self Cites2014409
Self Cites2015425
Total Cites199915771
Total Cites200019891
Total Cites200123744
Total Cites200223419
Total Cites200327594
Total Cites200432523
Total Cites200535021
Total Cites200632710
Total Cites200729803
Total Cites200828558
Total Cites200927209
Total Cites201025204
Total Cites201125577
Total Cites201225354
Total Cites201325497
Total Cites201425844
Total Cites201526847
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 document19997.358
External Cites per document20008.049
External Cites per document20018.765
External Cites per document20028.304
External Cites per document20039.921
External Cites per document200412.571
External Cites per document200515.259
External Cites per document200616.014
External Cites per document200715.312
External Cites per document200815.403
External Cites per document200914.911
External Cites per document201014.305
External Cites per document201114.493
External Cites per document201214.557
External Cites per document201313.244
External Cites per document201411.830
External Cites per document201511.239
Cites per document19997.568
Cites per document20008.230
Cites per document20018.957
Cites per document20028.504
Cites per document200310.141
Cites per document200412.759
Cites per document200515.462
Cites per document200616.298
Cites per document200715.571
Cites per document200815.614
Cites per document200915.158
Cites per document201014.544
Cites per document201114.699
Cites per document201214.758
Cites per document201313.441
Cites per document201412.020
Cites per document201511.419
% 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
19994.12
20004.58
20014.43
20027.15
200311.33
200418.64
200515.96
200610.37
200710.25
200813.82
200910.77
20108.81
20118.58
201210.21
201310.08
201410.88
20159.75
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 documents19992646
Non-citable documents20002295
Non-citable documents20011905
Non-citable documents20021518
Non-citable documents20031372
Non-citable documents20041348
Non-citable documents20051411
Non-citable documents20061484
Non-citable documents20071615
Non-citable documents20081748
Non-citable documents20091883
Non-citable documents20101982
Non-citable documents20112067
Non-citable documents20122109
Non-citable documents20131904
Non-citable documents20141798
Non-citable documents20151786
Citable documents19992084
Citable documents20002417
Citable documents20012651
Citable documents20022754
Citable documents20032721
Citable documents20042549
Citable documents20052265
Citable documents20062007
Citable documents20071914
Citable documents20081829
Citable documents20091795
Citable documents20101733
Citable documents20111740
Citable documents20121718
Citable documents20131897
Citable documents20142150
Citable documents20152351
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 documents19992927
Uncited documents20002755
Uncited documents20012522
Uncited documents20022228
Uncited documents20032043
Uncited documents20041904
Uncited documents20051750
Uncited documents20061647
Uncited documents20071824
Uncited documents20081916
Uncited documents20092040
Uncited documents20102023
Uncited documents20112068
Uncited documents20122029
Uncited documents20132020
Uncited documents20142064
Uncited documents20152179
Cited documents19991803
Cited documents20001957
Cited documents20012034
Cited documents20022044
Cited documents20032050
Cited documents20041993
Cited documents20051926
Cited documents20061844
Cited documents20071705
Cited documents20081661
Cited documents20091638
Cited documents20101692
Cited documents20111739
Cited documents20121798
Cited documents20131781
Cited documents20141884
Cited documents20151958
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