Scimago Journal & Country Rank

JAMA - Journal of the American Medical Association

Country United States  - SIR icon SIR Ranking of United States
603
H Index
Subject Area and CategoryMedicine
Medicine (miscellaneous)
PublisherAmerican Medical Association
Publication typeJournals
ISSN00987484
Coverage1909, 1925, 1928-1929, 1935-1938, 1942, 1945-ongoing

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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)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
Medicine (miscellaneous)2016Q1
Medicine (miscellaneous)2017Q1
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
19993.792
20004.139
20014.062
20023.978
20034.602
20045.883
20056.517
20067.095
20077.013
20087.024
20096.325
20106.346
20116.355
20126.288
20136.506
20146.421
20156.892
20167.278
20178.876
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)19997.422
Cites / Doc. (4 years)20008.389
Cites / Doc. (4 years)20019.312
Cites / Doc. (4 years)20029.366
Cites / Doc. (4 years)200310.630
Cites / Doc. (4 years)200412.188
Cites / Doc. (4 years)200514.591
Cites / Doc. (4 years)200616.598
Cites / Doc. (4 years)200716.324
Cites / Doc. (4 years)200816.235
Cites / Doc. (4 years)200916.010
Cites / Doc. (4 years)201015.847
Cites / Doc. (4 years)201115.522
Cites / Doc. (4 years)201215.190
Cites / Doc. (4 years)201314.514
Cites / Doc. (4 years)201413.492
Cites / Doc. (4 years)201513.264
Cites / Doc. (4 years)201613.466
Cites / Doc. (4 years)201714.302
Cites / Doc. (3 years)19997.422
Cites / Doc. (3 years)20008.462
Cites / Doc. (3 years)20019.410
Cites / Doc. (3 years)20028.959
Cites / Doc. (3 years)200310.667
Cites / Doc. (3 years)200413.303
Cites / Doc. (3 years)200516.009
Cites / Doc. (3 years)200616.662
Cites / Doc. (3 years)200716.025
Cites / Doc. (3 years)200816.160
Cites / Doc. (3 years)200915.921
Cites / Doc. (3 years)201015.225
Cites / Doc. (3 years)201115.353
Cites / Doc. (3 years)201215.459
Cites / Doc. (3 years)201314.280
Cites / Doc. (3 years)201412.964
Cites / Doc. (3 years)201513.255
Cites / Doc. (3 years)201613.898
Cites / Doc. (3 years)201715.822
Cites / Doc. (2 years)19997.281
Cites / Doc. (2 years)20008.117
Cites / Doc. (2 years)20018.638
Cites / Doc. (2 years)20028.397
Cites / Doc. (2 years)200311.260
Cites / Doc. (2 years)200414.607
Cites / Doc. (2 years)200515.694
Cites / Doc. (2 years)200616.010
Cites / Doc. (2 years)200715.310
Cites / Doc. (2 years)200816.043
Cites / Doc. (2 years)200914.512
Cites / Doc. (2 years)201014.777
Cites / Doc. (2 years)201115.681
Cites / Doc. (2 years)201215.177
Cites / Doc. (2 years)201313.019
Cites / Doc. (2 years)201412.591
Cites / Doc. (2 years)201513.086
Cites / Doc. (2 years)201615.203
Cites / Doc. (2 years)201716.467
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 Cites1999438
Self Cites2000436
Self Cites2001508
Self Cites2002549
Self Cites2003599
Self Cites2004482
Self Cites2005462
Self Cites2006570
Self Cites2007496
Self Cites2008388
Self Cites2009443
Self Cites2010413
Self Cites2011360
Self Cites2012345
Self Cites2013374
Self Cites2014411
Self Cites2015428
Self Cites2016510
Self Cites2017475
Total Cites199916269
Total Cites200020427
Total Cites200124183
Total Cites200223830
Total Cites200328064
Total Cites200433045
Total Cites200535812
Total Cites200633308
Total Cites200730271
Total Cites200828846
Total Cites200927654
Total Cites201025669
Total Cites201126069
Total Cites201226049
Total Cites201326546
Total Cites201427368
Total Cites201530353
Total Cites201630131
Total Cites201730678
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 document19997.222
External Cites per document20008.281
External Cites per document20019.212
External Cites per document20028.752
External Cites per document200310.439
External Cites per document200413.109
External Cites per document200515.802
External Cites per document200616.377
External Cites per document200715.762
External Cites per document200815.943
External Cites per document200915.666
External Cites per document201014.980
External Cites per document201115.141
External Cites per document201215.255
External Cites per document201314.079
External Cites per document201412.770
External Cites per document201513.068
External Cites per document201613.663
External Cites per document201715.577
Cites per document19997.422
Cites per document20008.462
Cites per document20019.410
Cites per document20028.959
Cites per document200310.667
Cites per document200413.303
Cites per document200516.009
Cites per document200616.662
Cites per document200716.025
Cites per document200816.160
Cites per document200915.921
Cites per document201015.225
Cites per document201115.353
Cites per document201215.459
Cites per document201314.280
Cites per document201412.964
Cites per document201513.255
Cites per document201613.898
Cites per document201715.822
% 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
19994.23
20006.72
20017.77
200210.02
200311.57
200418.86
200516.08
200610.60
200710.44
200813.98
200910.90
20108.94
20118.65
201210.41
201310.28
201411.23
201510.18
201611.51
201711.03
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 documents19992991
Non-citable documents20002473
Non-citable documents20011893
Non-citable documents20021509
Non-citable documents20031382
Non-citable documents20041342
Non-citable documents20051396
Non-citable documents20061460
Non-citable documents20071598
Non-citable documents20081742
Non-citable documents20091879
Non-citable documents20101978
Non-citable documents20112060
Non-citable documents20122096
Non-citable documents20131887
Non-citable documents20141773
Non-citable documents20151749
Non-citable documents20162028
Non-citable documents20172299
Citable documents19992192
Citable documents20002414
Citable documents20012570
Citable documents20022660
Citable documents20032631
Citable documents20042484
Citable documents20052237
Citable documents20061999
Citable documents20071889
Citable documents20081785
Citable documents20091737
Citable documents20101686
Citable documents20111698
Citable documents20121685
Citable documents20131859
Citable documents20142111
Citable documents20152290
Citable documents20162168
Citable documents20171939
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 documents19993336
Uncited documents20002916
Uncited documents20012407
Uncited documents20022108
Uncited documents20031947
Uncited documents20041823
Uncited documents20051698
Uncited documents20061609
Uncited documents20071772
Uncited documents20081865
Uncited documents20091967
Uncited documents20101969
Uncited documents20112003
Uncited documents20121955
Uncited documents20131933
Uncited documents20141970
Uncited documents20152001
Uncited documents20162070
Uncited documents20172131
Cited documents19991847
Cited documents20001971
Cited documents20012056
Cited documents20022061
Cited documents20032066
Cited documents20042003
Cited documents20051935
Cited documents20061850
Cited documents20071715
Cited documents20081662
Cited documents20091649
Cited documents20101695
Cited documents20111755
Cited documents20121826
Cited documents20131813
Cited documents20141914
Cited documents20152038
Cited documents20162126
Cited documents20172107
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