Intended for healthcare professionals

Education And Debate

Meta-analysis: Principles and procedures

BMJ 1997; 315 doi: https://doi.org/10.1136/bmj.315.7121.1533 (Published 06 December 1997) Cite this as: BMJ 1997;315:1533

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 October 2019

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AbstractFullPdf
Jul 200301960
Aug 200302260
Sep 200303050
Oct 200303700
Nov 200303510
Dec 200302850
Jan 200403050
Feb 200413510
Mar 200424360
Apr 200403590
May 200414040
Jun 200423950
Jul 200414420
Aug 200435020
Sep 2004206770
Oct 2004204220
Nov 2004386242
Dec 2004594100
Jan 2005294660
Feb 2005364971
Mar 2005364710
Apr 2005193620
May 2005243760
Jun 2005192530
Jul 2005253450
Aug 2005313120
Sep 2005484980
Oct 2005506260
Nov 2005485291
Dec 2005415750
Jan 2006607170
Feb 2006709601
Mar 2006728350
Apr 2006689010
May 2006728550
Jun 2006656990
Jul 2006927930
Aug 2006908350
Sep 200610611610
Oct 200610411230
Nov 20068711300
Dec 2006748320
Jan 200710011140
Feb 2007809170
Mar 20077413110
Apr 20076111330
May 20077912400
Jun 20078210870
Jul 2007668240
Aug 2007619000
Sep 20077011230
Oct 200710114810
Nov 20079614830
Dec 200710210520
Jan 200816314550
Feb 200811913620
Mar 200812512890
Apr 20089312880
May 20085311120
Jun 20085914160
Jul 20088010150
Aug 2008779500
Sep 200812711580
Oct 200817815221
Nov 200810010451
Dec 20081168661
Jan 20095207891
Feb 20095307951
Mar 200964711500
Apr 20095246020
May 20095695010
Jun 20095106580
Jul 20094613970
Aug 20094743870
Sep 20095284260
Oct 20096615631
Nov 20097605151
Dec 20096121990
Jan 20105562661
Feb 20106074750
Mar 201010266401
Apr 20107925840
May 20107265890
Jun 20106264460
Jul 20106135661
Aug 20106744600
Sep 201010083820
Oct 201013556300
Nov 201012644410
Dec 20109533430
Jan 201111573930
Feb 201110624140
Mar 201112354910
Apr 20118633560
May 20118603450
Jun 20119142790
Jul 20114394790
Aug 20111067960
Sep 2011979150
Oct 201112312790
Nov 20113712880
Dec 2011012030
Jan 20128765870
Feb 201210333870
Mar 20127383300
Apr 20126862980
May 20121072850
Jun 2012712690
Jul 2012492540
Aug 2012392820
Sep 20122062980
Oct 20127803520
Nov 201211164530
Dec 20126062200
Jan 20137522810
Feb 20137543470
Mar 20139333470
Apr 20139893590
May 201313844840
Jun 201310893820
Jul 20139684190
Aug 20139173960
Sep 201311684090
Oct 201316365670
Nov 201315695130
Dec 201312534230
Jan 20149953170
Feb 201410184240
Mar 201410944480
Apr 201412423580
May 20149582680
Jun 20146671970
Jul 20142012525
Aug 20148082760
Sep 20149653230
Oct 2014625282119
Nov 201420861144755
Dec 20141897835409
Jan 20151018379141
Feb 2015851393136
Mar 201567823519
Apr 20155231656
May 201537615012
Jun 2015271833
Jul 20153481546
Aug 20152931249
Sep 201531012717
Oct 201543823739
Nov 20155362010
Dec 20153721300
Jan 2016393238134
Feb 201647617042
Mar 201660618749
Apr 201657115645
May 201662013131
Jun 2016531279180
Jul 20164931310
Aug 201644614040
Sep 2016487930
Oct 201635715021
Nov 20165121560
Dec 2016277439363
Jan 20172771080
Feb 20173491320
Mar 20174291500
Apr 20174461080
May 20174011140
Jun 20173291000
Jul 2017336880
Aug 2017315880
Sep 2017415960
Oct 20174331350
Nov 20174041410
Dec 2017341980
Jan 20183801380
Feb 20182971470
Mar 20184981190
Apr 20185152020
May 20185351320
Jun 20184381220
Jul 20184741260
Aug 20184191450
Sep 20183881290
Oct 20186151730
Nov 20184561620
Dec 20183721230
Jan 20195071680
Feb 20193642740
Mar 20194371220
Apr 20193901150
May 20193911210
Jun 20193291070
Jul 20193131130
Aug 20192561290
Sep 20192861260
Oct 2019126330
Total84802964942596