Scimago Journal & Country Rank


Country United Kingdom  - SIR icon SIR Ranking of United Kingdom
H Index
Subject Area and CategoryMedicine
Pulmonary and Respiratory Medicine
PublisherBMJ Publishing Group
Publication typeJournals
ISSN14683296, 00406376
Scope Thorax is one of the world"s leading respiratory medicine journals publishing clinical and experimental research articles on respiratory medicine, paediatrics, immunology, pharmacology, pathology, and surgery. Thorax is one of the highest ISI ranked journals covering all aspects of pulmonary medicine. Each issue covers topics such as COPD, asthma, smoking, respiratory infection and lung cancer; and includes editorials, short papers, review series, case reports, images in thorax, and letters. Thorax is the official journal of the British Thoracic Society.


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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.

Pulmonary and Respiratory Medicine1999Q1
Pulmonary and Respiratory Medicine2000Q1
Pulmonary and Respiratory Medicine2001Q1
Pulmonary and Respiratory Medicine2002Q1
Pulmonary and Respiratory Medicine2003Q1
Pulmonary and Respiratory Medicine2004Q1
Pulmonary and Respiratory Medicine2005Q1
Pulmonary and Respiratory Medicine2006Q1
Pulmonary and Respiratory Medicine2007Q1
Pulmonary and Respiratory Medicine2008Q1
Pulmonary and Respiratory Medicine2009Q1
Pulmonary and Respiratory Medicine2010Q1
Pulmonary and Respiratory Medicine2011Q1
Pulmonary and Respiratory Medicine2012Q1
Pulmonary and Respiratory Medicine2013Q1
Pulmonary and Respiratory Medicine2014Q1
Pulmonary and Respiratory Medicine2015Q1
Pulmonary and Respiratory Medicine2016Q1
Pulmonary and Respiratory Medicine2017Q1
Pulmonary and Respiratory Medicine2018Q1

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)19991.395
Cites / Doc. (4 years)20001.790
Cites / Doc. (4 years)20011.981
Cites / Doc. (4 years)20022.296
Cites / Doc. (4 years)20032.984
Cites / Doc. (4 years)20044.156
Cites / Doc. (4 years)20056.824
Cites / Doc. (4 years)20066.853
Cites / Doc. (4 years)20076.836
Cites / Doc. (4 years)20087.226
Cites / Doc. (4 years)20097.228
Cites / Doc. (4 years)20107.152
Cites / Doc. (4 years)20117.164
Cites / Doc. (4 years)20127.818
Cites / Doc. (4 years)20138.444
Cites / Doc. (4 years)20148.767
Cites / Doc. (4 years)20158.153
Cites / Doc. (4 years)20167.669
Cites / Doc. (4 years)20177.276
Cites / Doc. (4 years)20187.364
Cites / Doc. (3 years)19991.395
Cites / Doc. (3 years)20001.873
Cites / Doc. (3 years)20011.885
Cites / Doc. (3 years)20022.338
Cites / Doc. (3 years)20033.462
Cites / Doc. (3 years)20045.872
Cites / Doc. (3 years)20056.753
Cites / Doc. (3 years)20066.923
Cites / Doc. (3 years)20076.765
Cites / Doc. (3 years)20087.165
Cites / Doc. (3 years)20097.353
Cites / Doc. (3 years)20106.690
Cites / Doc. (3 years)20116.853
Cites / Doc. (3 years)20127.795
Cites / Doc. (3 years)20138.978
Cites / Doc. (3 years)20148.778
Cites / Doc. (3 years)20158.448
Cites / Doc. (3 years)20167.383
Cites / Doc. (3 years)20177.189
Cites / Doc. (3 years)20187.502
Cites / Doc. (2 years)19991.375
Cites / Doc. (2 years)20001.726
Cites / Doc. (2 years)20011.770
Cites / Doc. (2 years)20022.482
Cites / Doc. (2 years)20035.042
Cites / Doc. (2 years)20045.724
Cites / Doc. (2 years)20056.797
Cites / Doc. (2 years)20066.517
Cites / Doc. (2 years)20076.563
Cites / Doc. (2 years)20087.279
Cites / Doc. (2 years)20096.760
Cites / Doc. (2 years)20106.253
Cites / Doc. (2 years)20116.554
Cites / Doc. (2 years)20128.128
Cites / Doc. (2 years)20138.933
Cites / Doc. (2 years)20149.292
Cites / Doc. (2 years)20158.048
Cites / Doc. (2 years)20167.213
Cites / Doc. (2 years)20177.194
Cites / Doc. (2 years)20187.367
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 Cites1999181
Self Cites2000218
Self Cites2001255
Self Cites2002223
Self Cites2003241
Self Cites2004201
Self Cites2005217
Self Cites2006215
Self Cites2007162
Self Cites2008174
Self Cites2009138
Self Cites2010180
Self Cites2011199
Self Cites2012304
Self Cites2013277
Self Cites2014220
Self Cites2015266
Self Cites201694
Self Cites201779
Self Cites201896
Total Cites19992507
Total Cites20003223
Total Cites20013217
Total Cites20023046
Total Cites20033441
Total Cites20043717
Total Cites20054369
Total Cites20064209
Total Cites20073660
Total Cites20083611
Total Cites20093831
Total Cites20103773
Total Cites20114194
Total Cites20124560
Total Cites20134965
Total Cites20144538
Total Cites20154435
Total Cites20163987
Total Cites20173832
Total Cites20183631
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 document19991.294
External Cites per document20001.746
External Cites per document20011.735
External Cites per document20022.167
External Cites per document20033.219
External Cites per document20045.555
External Cites per document20056.417
External Cites per document20066.569
External Cites per document20076.466
External Cites per document20086.819
External Cites per document20097.088
External Cites per document20106.371
External Cites per document20116.528
External Cites per document20127.275
External Cites per document20138.477
External Cites per document20148.352
External Cites per document20157.941
External Cites per document20167.209
External Cites per document20177.041
External Cites per document20187.304
Cites per document19991.395
Cites per document20001.873
Cites per document20011.885
Cites per document20022.338
Cites per document20033.462
Cites per document20045.872
Cites per document20056.753
Cites per document20066.923
Cites per document20076.765
Cites per document20087.165
Cites per document20097.353
Cites per document20106.690
Cites per document20116.853
Cites per document20127.795
Cites per document20138.978
Cites per document20148.778
Cites per document20158.448
Cites per document20167.383
Cites per document20177.189
Cites per document20187.502
% 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 documents1999211
Non-citable documents2000236
Non-citable documents2001225
Non-citable documents2002241
Non-citable documents2003216
Non-citable documents2004207
Non-citable documents2005213
Non-citable documents2006245
Non-citable documents2007287
Non-citable documents2008321
Non-citable documents2009382
Non-citable documents2010378
Non-citable documents2011344
Non-citable documents2012391
Non-citable documents2013429
Non-citable documents2014502
Non-citable documents2015454
Non-citable documents2016438
Non-citable documents2017369
Non-citable documents2018308
Citable documents19991797
Citable documents20001721
Citable documents20011707
Citable documents20021303
Citable documents2003994
Citable documents2004633
Citable documents2005647
Citable documents2006608
Citable documents2007541
Citable documents2008504
Citable documents2009521
Citable documents2010564
Citable documents2011612
Citable documents2012585
Citable documents2013553
Citable documents2014517
Citable documents2015525
Citable documents2016540
Citable documents2017533
Citable documents2018484
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 documents19991319
Uncited documents20001239
Uncited documents20011236
Uncited documents2002922
Uncited documents2003586
Uncited documents2004238
Uncited documents2005197
Uncited documents2006203
Uncited documents2007238
Uncited documents2008268
Uncited documents2009337
Uncited documents2010365
Uncited documents2011355
Uncited documents2012342
Uncited documents2013363
Uncited documents2014414
Uncited documents2015394
Uncited documents2016401
Uncited documents2017369
Uncited documents2018272
Cited documents1999689
Cited documents2000718
Cited documents2001696
Cited documents2002622
Cited documents2003624
Cited documents2004602
Cited documents2005663
Cited documents2006650
Cited documents2007590
Cited documents2008557
Cited documents2009566
Cited documents2010577
Cited documents2011601
Cited documents2012634
Cited documents2013619
Cited documents2014605
Cited documents2015585
Cited documents2016577
Cited documents2017533
Cited documents2018520
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