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: January 2018 to June 2025

Rendering graph...
AbstractFullPdf
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
Oct 20194261170
Nov 20193761360
Dec 20193481060
Jan 20203861150
Feb 20205122610
Mar 20205881410
May 20208871570
Jun 20207471580
Jul 2020753850
Aug 20206311300
Sep 20207202090
Oct 20209742000
Nov 20209661910
Dec 20206781990
Jan 20217721720
Feb 20218703230
Mar 20217792640
Apr 20216131720
May 20217261620
Jun 20216241590
Jul 20216141490
Aug 20216351580
Sep 20216751720
Oct 20217151940
Nov 20217301870
Dec 20216881630
Jan 20226562400
Feb 20226861530
Mar 20227842040
Apr 20227911920
May 20228562270
Jun 20225772030
Jul 20226222590
Aug 20225371980
Sep 20225291940
Oct 20226772200
Nov 20226472320
Dec 20225181090
Jan 20234991130
Feb 20234461250
Mar 20235631320
Apr 20234801420
May 2023435980
Jun 2023437870
Jul 20234541080
Aug 20233791070
Sep 2023532980
Oct 20236531360
Nov 20236982170
Dec 20239972640
Jan 202410942200
Feb 202410242140
Mar 20248462450
Apr 20249071890
May 20248811700
Jun 20247841690
Jul 20248651960
Aug 20248621710
Sep 20248551890
Oct 20248451790
Nov 20246831590
Dec 20244092820
Jan 20256551390
Feb 20255901300
Mar 20256251240
Apr 20256001550
May 20255801550
Jun 2025109220
Total53474145130