Scimago Journal & Country Rank

JAMA - Journal of the American Medical Association

CountryUnited States
H Index
Subject Area and CategoryMedicine
Medicine (miscellaneous)
PublisherAmerican Medical Association
Publication typeJournals
Coverage1909, 1925, 1928-1929, 1935-1938, 1942, 1945-ongoing

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)1997Q1
Medicine (miscellaneous)1998Q1
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

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)19996.979
Cites / Doc. (4 years)20007.960
Cites / Doc. (4 years)20018.877
Cites / Doc. (4 years)20028.950
Cites / Doc. (4 years)200310.165
Cites / Doc. (4 years)200411.722
Cites / Doc. (4 years)200514.129
Cites / Doc. (4 years)200616.250
Cites / Doc. (4 years)200716.002
Cites / Doc. (4 years)200815.904
Cites / Doc. (4 years)200915.503
Cites / Doc. (4 years)201015.344
Cites / Doc. (4 years)201115.021
Cites / Doc. (4 years)201214.645
Cites / Doc. (4 years)201313.859
Cites / Doc. (4 years)201412.923
Cites / Doc. (4 years)201512.564
Cites / Doc. (4 years)201612.414
Cites / Doc. (3 years)19996.979
Cites / Doc. (3 years)20008.018
Cites / Doc. (3 years)20019.022
Cites / Doc. (3 years)20028.554
Cites / Doc. (3 years)200310.178
Cites / Doc. (3 years)200412.822
Cites / Doc. (3 years)200515.624
Cites / Doc. (3 years)200616.415
Cites / Doc. (3 years)200715.686
Cites / Doc. (3 years)200815.763
Cites / Doc. (3 years)200915.310
Cites / Doc. (3 years)201014.782
Cites / Doc. (3 years)201114.872
Cites / Doc. (3 years)201214.903
Cites / Doc. (3 years)201313.590
Cites / Doc. (3 years)201412.447
Cites / Doc. (3 years)201512.520
Cites / Doc. (3 years)201612.774
Cites / Doc. (2 years)19996.826
Cites / Doc. (2 years)20007.763
Cites / Doc. (2 years)20018.284
Cites / Doc. (2 years)20027.995
Cites / Doc. (2 years)200310.745
Cites / Doc. (2 years)200414.206
Cites / Doc. (2 years)200515.447
Cites / Doc. (2 years)200615.813
Cites / Doc. (2 years)200714.945
Cites / Doc. (2 years)200815.500
Cites / Doc. (2 years)200913.977
Cites / Doc. (2 years)201014.399
Cites / Doc. (2 years)201115.209
Cites / Doc. (2 years)201214.574
Cites / Doc. (2 years)201312.428
Cites / Doc. (2 years)201412.064
Cites / Doc. (2 years)201512.391
Cites / Doc. (2 years)201613.821
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 Cites1999437
Self Cites2000436
Self Cites2001508
Self Cites2002548
Self Cites2003598
Self Cites2004480
Self Cites2005460
Self Cites2006567
Self Cites2007496
Self Cites2008385
Self Cites2009443
Self Cites2010410
Self Cites2011360
Self Cites2012344
Self Cites2013373
Self Cites2014409
Self Cites2015428
Self Cites2016509
Total Cites199915919
Total Cites200020092
Total Cites200123916
Total Cites200223559
Total Cites200327724
Total Cites200432695
Total Cites200535403
Total Cites200632913
Total Cites200729992
Total Cites200828720
Total Cites200927329
Total Cites201025410
Total Cites201125743
Total Cites201225574
Total Cites201325834
Total Cites201426811
Total Cites201529434
Total Cites201628729
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 document19996.787
External Cites per document20007.844
External Cites per document20018.830
External Cites per document20028.355
External Cites per document20039.958
External Cites per document200412.633
External Cites per document200515.421
External Cites per document200616.133
External Cites per document200715.427
External Cites per document200815.552
External Cites per document200915.062
External Cites per document201014.543
External Cites per document201114.664
External Cites per document201214.703
External Cites per document201313.393
External Cites per document201412.257
External Cites per document201512.338
External Cites per document201612.548
Cites per document19996.979
Cites per document20008.018
Cites per document20019.022
Cites per document20028.554
Cites per document200310.178
Cites per document200412.822
Cites per document200515.624
Cites per document200616.415
Cites per document200715.686
Cites per document200815.763
Cites per document200915.310
Cites per document201014.782
Cites per document201114.872
Cites per document201214.903
Cites per document201313.590
Cites per document201412.447
Cites per document201512.520
Cites per document201612.774
% 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 documents19993012
Non-citable documents20002498
Non-citable documents20011911
Non-citable documents20021525
Non-citable documents20031387
Non-citable documents20041357
Non-citable documents20051408
Non-citable documents20061473
Non-citable documents20071603
Non-citable documents20081747
Non-citable documents20091882
Non-citable documents20101980
Non-citable documents20112065
Non-citable documents20122108
Non-citable documents20131905
Non-citable documents20141799
Non-citable documents20151786
Non-citable documents20162084
Citable documents19992281
Citable documents20002506
Citable documents20012651
Citable documents20022754
Citable documents20032724
Citable documents20042550
Citable documents20052266
Citable documents20062005
Citable documents20071912
Citable documents20081822
Citable documents20091785
Citable documents20101719
Citable documents20111731
Citable documents20121716
Citable documents20131901
Citable documents20142154
Citable documents20152351
Citable documents20162249
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 documents19993480
Uncited documents20003044
Uncited documents20012525
Uncited documents20022233
Uncited documents20032059
Uncited documents20041923
Uncited documents20051756
Uncited documents20061640
Uncited documents20071818
Uncited documents20081912
Uncited documents20092031
Uncited documents20102010
Uncited documents20112054
Uncited documents20122024
Uncited documents20132011
Uncited documents20142052
Uncited documents20152120
Uncited documents20162240
Cited documents19991813
Cited documents20001960
Cited documents20012037
Cited documents20022046
Cited documents20032052
Cited documents20041984
Cited documents20051918
Cited documents20061838
Cited documents20071697
Cited documents20081657
Cited documents20091636
Cited documents20101689
Cited documents20111742
Cited documents20121800
Cited documents20131795
Cited documents20141901
Cited documents20152017
Cited documents20162093
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