Intended for healthcare professionals

Clinical Review Understanding controlled trials

Randomisation methods in controlled trials

BMJ 1998; 317 doi: https://doi.org/10.1136/bmj.317.7168.1301 (Published 07 November 1998) Cite this as: BMJ 1998;317:1301

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 June 2021

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AbstractFullPdf
Jul 200304748
Aug 200303626
Sep 200304817
Oct 200307523
Nov 200309141
Dec 200305533
Jan 200409238
Feb 200406535
Mar 2004011537
Apr 200407336
May 200409233
Jun 2004211449
Jul 200407724
Aug 200409735
Sep 200415531
Oct 200497145
Nov 2004118852
Dec 20042810457
Jan 20051512159
Feb 2005108247
Mar 2005129249
Apr 200549154
May 200537253
Jun 200555643
Jul 200524033
Aug 200546848
Sep 200505249
Oct 200527856
Nov 200547959
Dec 200559736
Jan 2006811966
Feb 200616552
Mar 2006111665
Apr 200648548
May 200688950
Jun 200628643
Jul 200627334
Aug 200626129
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Nov 20067167111
Dec 2006720447
Jan 2007115863
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Apr 2007310844
May 200708336
Jun 200726836
Jul 200745423
Aug 200705531
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Nov 2007617764
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Jan 2008017655
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Apr 2008011731
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Jul 200809532
Aug 2008210630
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Oct 2008521043
Nov 20081130267
Dec 2008616770
Jan 2009639551
Feb 2009458438
Mar 20091137556
Apr 20091067741
May 2009768146
Jun 2009476325
Jul 2009605222
Aug 2009574725
Sep 2009684921
Oct 2009526031
Nov 20096016758
Dec 2009519139
Jan 2010619928
Feb 2010443819
Mar 2010455329
Apr 2010465432
May 2010343917
Jun 2010825922
Jul 20101429433
Aug 2010928731
Sep 20101527319
Oct 20103369437
Nov 201044115146
Dec 20103688131
Jan 201140916848
Feb 201129212930
Mar 201141615454
Apr 20112847539
May 201123211039
Jun 20111466326
Jul 2011688218
Aug 2011512545
Sep 20111712532
Oct 20111826647
Nov 2011121840
Dec 2011018417
Jan 201216111529
Feb 201226518336
Mar 20121309430
Apr 20121629931
May 201217020850
Jun 2012886818
Jul 2012735721
Aug 2012334816
Sep 2012953817
Oct 2012916211
Nov 20122098518
Dec 201298577
Jan 20131105214
Feb 201399507
Mar 20131359012
Apr 20132009315
May 201320311827
Jun 20131447018
Jul 20131276224
Aug 20131096110
Sep 20131697624
Oct 20133039414
Nov 201330910717
Dec 20132419019
Jan 201427316460
Feb 20142469115
Mar 201425612727
Apr 201434916138
May 20142759723
Jun 20141738617
Jul 2014217526
Aug 2014135398
Sep 2014904918
Oct 201457205
Nov 20141145118
Dec 20141617220
Jan 20151905413
Feb 20151366824
Mar 201524110325
Apr 20152168931
May 20151967615
Jun 20151596210
Jul 20151045511
Aug 20151556020
Sep 2015122477
Oct 2015157665
Nov 201519711510
Dec 20151517413
Jan 20161756710
Feb 2016149666
Mar 20163059511
Apr 201633910821
May 20162989915
Jun 20161635514
Jul 2016156258
Aug 2016144538
Sep 20161595115
Oct 20161987914
Nov 201627710724
Dec 20162366315
Jan 20172076914
Feb 20172375513
Mar 201729410818
Apr 201728010922
May 20172999121
Jun 2017173574
Jul 20172193813
Aug 2017169399
Sep 2017201537
Oct 20173159910
Nov 201736212218
Dec 2017250559
Jan 20183069026
Feb 2018255707
Mar 201832713925
Apr 201830512222
May 20182998913
Jun 2018208382
Jul 2018209357
Aug 20182494611
Sep 20181984212
Oct 2018222634
Nov 2018268868
Dec 20181755514
Jan 20192798010
Feb 20192676918
Mar 20193808223
Apr 20193458020
May 20192998618
Jun 20192285710
Jul 20192094613
Aug 20192384915
Sep 20192524922
Oct 20192407525
Nov 20192309319
Dec 20192876012
Jan 20203498020
Feb 20203927028
Mar 20203336713
Apr 2020334659
May 20202924113
Jun 20202913312
Jul 2020170233
Aug 2020158199
Sep 20203524358
Oct 20205888086
Nov 20204177330
Dec 20203036825
Jan 20215208521
Feb 20214644223
Mar 20216297417
Apr 20214866013
May 20213505830
Jun 2021168285
Total31117187546247