Education And Debate

Why the impact factor of journals should not be used for evaluating research

BMJ 1997; 314 doi: https://doi.org/10.1136/bmj.314.7079.497 (Published 15 February 1997) Cite this as: BMJ 1997;314:497

Article usage

Article metrics provide readers and authors with an indication of how often a specific article has been accessed month by month. It counts three formats - abstract/extract, full text and pdf. The page is updated each day.

Usage statistics: July 2003 to December 2017

Rendering graph...
AbstractFullPdf
Jul 200303490
Aug 200302570
Sep 200303570
Oct 200304920
Nov 200303220
Dec 200303160
Jan 200413820
Feb 200403710
Mar 200416220
Apr 200405080
May 200406220
Jun 200406870
Jul 200405150
Aug 200407190
Sep 20041113390
Oct 20042810510
Nov 2004335710
Dec 2004445440
Jan 20054815890
Feb 20059325530
Mar 200510123700
Apr 20054910440
May 20055315080
Jun 20057218960
Jul 20058121600
Aug 200510222360
Sep 20058923870
Oct 200512426260
Nov 2005518530
Dec 20057414590
Jan 200612723710
Feb 200611623800
Mar 200612827960
Apr 200611823820
May 2006649530
Jun 2006477910
Jul 20066613160
Aug 20068818870
Sep 20065315440
Oct 20069018280
Nov 20069516220
Dec 20069114720
Jan 200718719810
Feb 200717515300
Mar 200724715890
Apr 200712313960
May 200713916120
Jun 200713017240
Jul 200710114360
Aug 20078915390
Sep 200712018270
Oct 200719321830
Nov 200711922510
Dec 20074220350
Jan 20089026050
Feb 20085124620
Mar 20087229570
Apr 20083522610
May 20085629690
Jun 20084432370
Jul 20084326820
Aug 20084017900
Sep 20083722130
Oct 20085723311
Nov 20085422452
Dec 20084717481
Jan 200975410860
Feb 200994111070
Mar 2009139715020
Apr 200912097490
May 200912465930
Jun 200912018320
Jul 200911915660
Aug 200911286860
Sep 200913306650
Oct 200911469150
Nov 200913899010
Dec 200912437790
Jan 201013907760
Feb 201014038251
Mar 201013598090
Apr 201013527991
May 201011286221
Jun 201011577091
Jul 201012246871
Aug 201011056260
Sep 201020426340
Oct 201021456630
Nov 201015004830
Dec 201013153270
Jan 201115653990
Feb 201113884490
Mar 201114044390
Apr 20119782830
May 20119972580
Jun 20119432790
Jul 20116414070
Aug 20112696820
Sep 201140610880
Oct 201147815020
Nov 201113814310
Dec 2011011990
Jan 20128615010
Feb 201210013400
Mar 20126431780
Apr 20125731920
May 20124731220
Jun 20121721370
Jul 2012601500
Aug 20121731350
Sep 20121271310
Oct 20122221180
Nov 20122421560
Dec 2012131460
Jan 2013114560
Feb 2013115500
Mar 2013145500
Apr 20132841200
May 20133931180
Jun 20132701060
Jul 2013207670
Aug 2013204790
Sep 2013704620
Oct 20135251410
Nov 20135451040
Dec 2013466970
Jan 20146291460
Feb 2014569950
Mar 2014461860
Apr 2014440700
May 20143761620
Jun 20145711570
Jul 2014127133
Aug 20145371260
Sep 20145561060
Oct 2014260450
Nov 20141215657550
Dec 20141469575378
Jan 20151024316146
Feb 2015961264145
Mar 20158371416
Apr 20157021870
May 20155791220
Jun 201549110715
Jul 201564512945
Aug 2015146412027
Sep 201582418469
Oct 201578516992
Nov 20157751320
Dec 2015624292194
Jan 201668318466
Feb 2016291450
Mar 20163136838
Apr 20161907733
May 20163949224
Jun 201669513273
Jul 20163716520
Aug 20163237322
Sep 201625112876
Oct 2016260700
Nov 20162229828
Dec 2016231480
Jan 2017212530
Feb 2017265580
Mar 2017307560
Apr 2017241560
May 2017200670
Jun 2017158330
Jul 2017268290
Aug 2017189130
Sep 2017189300
Oct 2017221500
Nov 2017199740
Dec 2017110240
Total771701413872059