Scimago Journal & Country Rank

JAMA - Journal of the American Medical Association

Country United States  - SIR icon SIR Ranking of United States
654
H Index
Subject Area and CategoryMedicine
Medicine (miscellaneous)
Publisher American Medical Association
Publication typeJournals
ISSN15383598, 00987484, 00029955
Coverage1883-2020
Scope JAMA, published continuously since 1883, is an international peer-reviewed general medical journal. JAMA is a member of the JAMA Network, a consortium of peer-reviewed, general medical and specialty publications. Journal Reach. JAMA is the most widely circulated general medical journal in the world, with more than 286,000 recipients of the print journal, more than 1.3 million recipients of electronic tables of contents and alerts, and nearly 27 million annual visits to the journal's website. JAMA's reach includes a growing social media presence (more than 785,000 followers on Twitter and Facebook) and vast international news media exposure.

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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
Medicine (miscellaneous)2018Q1
Medicine (miscellaneous)2019Q1
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
20187.477
20195.913
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)19997.470
Cites / Doc. (4 years)20008.448
Cites / Doc. (4 years)20019.339
Cites / Doc. (4 years)20029.467
Cites / Doc. (4 years)200310.802
Cites / Doc. (4 years)200412.531
Cites / Doc. (4 years)200515.098
Cites / Doc. (4 years)200617.085
Cites / Doc. (4 years)200716.764
Cites / Doc. (4 years)200816.435
Cites / Doc. (4 years)200916.444
Cites / Doc. (4 years)201016.509
Cites / Doc. (4 years)201116.326
Cites / Doc. (4 years)201216.174
Cites / Doc. (4 years)201315.440
Cites / Doc. (4 years)201414.307
Cites / Doc. (4 years)201514.146
Cites / Doc. (4 years)201614.608
Cites / Doc. (4 years)201716.042
Cites / Doc. (4 years)201815.467
Cites / Doc. (4 years)201914.952
Cites / Doc. (3 years)19997.470
Cites / Doc. (3 years)20008.437
Cites / Doc. (3 years)20019.529
Cites / Doc. (3 years)20029.032
Cites / Doc. (3 years)200310.824
Cites / Doc. (3 years)200413.751
Cites / Doc. (3 years)200516.634
Cites / Doc. (3 years)200617.179
Cites / Doc. (3 years)200716.218
Cites / Doc. (3 years)200816.355
Cites / Doc. (3 years)200916.488
Cites / Doc. (3 years)201016.006
Cites / Doc. (3 years)201116.246
Cites / Doc. (3 years)201216.508
Cites / Doc. (3 years)201315.168
Cites / Doc. (3 years)201413.740
Cites / Doc. (3 years)201514.079
Cites / Doc. (3 years)201615.109
Cites / Doc. (3 years)201717.692
Cites / Doc. (3 years)201815.582
Cites / Doc. (3 years)201914.753
Cites / Doc. (2 years)19997.216
Cites / Doc. (2 years)20008.207
Cites / Doc. (2 years)20018.726
Cites / Doc. (2 years)20028.466
Cites / Doc. (2 years)200311.446
Cites / Doc. (2 years)200415.227
Cites / Doc. (2 years)200516.415
Cites / Doc. (2 years)200616.203
Cites / Doc. (2 years)200715.466
Cites / Doc. (2 years)200816.341
Cites / Doc. (2 years)200915.176
Cites / Doc. (2 years)201015.636
Cites / Doc. (2 years)201116.658
Cites / Doc. (2 years)201216.217
Cites / Doc. (2 years)201313.806
Cites / Doc. (2 years)201413.276
Cites / Doc. (2 years)201513.924
Cites / Doc. (2 years)201616.523
Cites / Doc. (2 years)201718.361
Cites / Doc. (2 years)201815.163
Cites / Doc. (2 years)201911.381
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 Cites2000437
Self Cites2001509
Self Cites2002550
Self Cites2003599
Self Cites2004482
Self Cites2005462
Self Cites2006568
Self Cites2007496
Self Cites2008386
Self Cites2009443
Self Cites2010415
Self Cites2011360
Self Cites2012345
Self Cites2013374
Self Cites2014412
Self Cites2015423
Self Cites2016512
Self Cites2017477
Self Cites2018529
Self Cites2019560
Total Cites199916321
Total Cites200020494
Total Cites200124347
Total Cites200223945
Total Cites200328316
Total Cites200433470
Total Cites200536329
Total Cites200633620
Total Cites200730425
Total Cites200828801
Total Cites200927798
Total Cites201025785
Total Cites201126123
Total Cites201226148
Total Cites201326666
Total Cites201427466
Total Cites201530734
Total Cites201631033
Total Cites201732890
Total Cites201832285
Total Cites201934346
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 document19997.269
External Cites per document20008.257
External Cites per document20019.330
External Cites per document20028.825
External Cites per document200310.595
External Cites per document200413.553
External Cites per document200516.423
External Cites per document200616.889
External Cites per document200715.954
External Cites per document200816.136
External Cites per document200916.225
External Cites per document201015.748
External Cites per document201116.022
External Cites per document201216.290
External Cites per document201314.956
External Cites per document201413.534
External Cites per document201513.885
External Cites per document201614.859
External Cites per document201717.436
External Cites per document201815.326
External Cites per document201914.513
Cites per document19997.470
Cites per document20008.437
Cites per document20019.529
Cites per document20029.032
Cites per document200310.824
Cites per document200413.751
Cites per document200516.634
Cites per document200617.179
Cites per document200716.218
Cites per document200816.355
Cites per document200916.488
Cites per document201016.006
Cites per document201116.246
Cites per document201216.508
Cites per document201315.168
Cites per document201413.740
Cites per document201514.079
Cites per document201615.109
Cites per document201717.692
Cites per document201815.582
Cites per document201914.753
% 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
19994.36
20006.75
20018.01
20029.81
200312.12
200419.18
200515.98
200610.68
200710.76
200814.19
200911.30
20109.35
20118.80
201210.52
201310.53
201411.34
201510.52
201611.63
20178.83
20188.29
20199.74
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 documents19992943
Non-citable documents20002425
Non-citable documents20011834
Non-citable documents20021460
Non-citable documents20031348
Non-citable documents20041301
Non-citable documents20051348
Non-citable documents20061415
Non-citable documents20071578
Non-citable documents20081741
Non-citable documents20091865
Non-citable documents20101952
Non-citable documents20112031
Non-citable documents20122063
Non-citable documents20131858
Non-citable documents20141756
Non-citable documents20151777
Non-citable documents20162049
Non-citable documents20172296
Non-citable documents20182417
Non-citable documents20192553
Citable documents19992185
Citable documents20002429
Citable documents20012555
Citable documents20022651
Citable documents20032616
Citable documents20042434
Citable documents20052184
Citable documents20061957
Citable documents20071876
Citable documents20081761
Citable documents20091686
Citable documents20101611
Citable documents20111608
Citable documents20121584
Citable documents20131758
Citable documents20141999
Citable documents20152183
Citable documents20162054
Citable documents20171859
Citable documents20182072
Citable documents20192328
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 documents19993283
Uncited documents20002872
Uncited documents20012333
Uncited documents20022060
Uncited documents20031901
Uncited documents20041715
Uncited documents20051585
Uncited documents20061515
Uncited documents20071741
Uncited documents20081840
Uncited documents20091901
Uncited documents20101866
Uncited documents20111881
Uncited documents20121813
Uncited documents20131793
Uncited documents20141835
Uncited documents20151921
Uncited documents20161967
Uncited documents20171987
Uncited documents20182255
Uncited documents20192537
Cited documents19991845
Cited documents20001982
Cited documents20012056
Cited documents20022051
Cited documents20032063
Cited documents20042020
Cited documents20051947
Cited documents20061857
Cited documents20071713
Cited documents20081662
Cited documents20091650
Cited documents20101697
Cited documents20111758
Cited documents20121834
Cited documents20131823
Cited documents20141920
Cited documents20152039
Cited documents20162136
Cited documents20172168
Cited documents20182234
Cited documents20192344
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