Skip to main content
Subscribe
Log In
More
Log in via Institution
Log in via OpenAthens
Log in via SAVIR
Log in using your username and password
For personal accounts OR managers of institutional accounts
Username
*
Password
*
Forgot your log in details?
Register a new account?
Forgot
your user name or password?
Basket
Search
More
Search for this keyword
Advanced search
Latest content
Current issue
Archive
Authors
About
Podcast
Search for this keyword
Advanced search
Close
More
Main menu
Latest content
Current issue
Archive
Authors
About
Podcast
Subscribe
Log in
More
Log in via Institution
Log in via OpenAthens
Log in via SAVIR
Log in using your username and password
For personal accounts OR managers of institutional accounts
Username
*
Password
*
Forgot your log in details?
Register a new account?
Forgot
your user name or password?
BMJ Journals
You are here
Home
Archive
Volume 8, Issue 1
Statistical and design issues in studies of groups
Email alerts
Article metrics
Article menu
Article
Text
Article
info
Citation
Tools
Share
Rapid Responses
Article
metrics
Alerts
PDF
Commentary
Statistical and design issues in studies of groups
Online download statistics by month:
Online download statistics by month: April 2002 to March 2024
Abstract
Full
Pdf
Apr 2002
0
69
28
May 2002
0
59
32
Jun 2002
0
66
17
Jul 2002
0
32
20
Aug 2002
0
23
10
Sep 2002
0
20
8
Oct 2002
0
22
8
Nov 2002
0
23
8
Dec 2002
0
10
16
Jan 2003
0
24
17
Feb 2003
0
28
31
Mar 2003
0
20
16
Apr 2003
0
8
16
May 2003
0
16
9
Jun 2003
0
20
29
Jul 2003
0
25
20
Aug 2003
0
23
16
Sep 2003
0
31
19
Oct 2003
0
36
9
Nov 2003
0
46
8
Dec 2003
0
31
3
Jan 2004
0
174
8
Feb 2004
0
77
12
Mar 2004
0
21
4
Apr 2004
0
28
6
May 2004
0
44
9
Jun 2004
0
66
20
Jul 2004
0
55
15
Aug 2004
0
94
41
Sep 2004
0
50
19
Oct 2004
28
60
36
Nov 2004
9
28
32
Dec 2004
5
20
25
Jan 2005
15
44
42
Feb 2005
9
41
20
Mar 2005
9
35
48
Apr 2005
3
32
22
May 2005
3
27
22
Jun 2005
2
23
30
Jul 2005
4
25
25
Aug 2005
1
26
31
Sep 2005
6
13
30
Oct 2005
3
28
26
Nov 2005
9
29
16
Dec 2005
7
39
16
Jan 2006
5
33
13
Feb 2006
3
25
16
Mar 2006
2
19
25
Apr 2006
1
15
17
May 2006
0
17
12
Jun 2006
2
14
15
Jul 2006
2
20
19
Aug 2006
1
26
26
Sep 2006
2
8
14
Oct 2006
3
31
38
Nov 2006
0
27
24
Dec 2006
2
14
14
Jan 2007
1
39
28
Feb 2007
2
21
11
Mar 2007
0
26
11
Apr 2007
14
11
10
May 2007
16
9
16
Jun 2007
12
11
9
Jul 2007
5
11
9
Aug 2007
13
5
12
Sep 2007
6
8
12
Oct 2007
3
5
15
Nov 2007
6
4
13
Dec 2007
2
7
7
Jan 2008
3
3
7
Feb 2008
4
4
10
Mar 2008
2
4
8
Apr 2008
9
3
17
May 2008
3
12
10
Jun 2008
4
4
5
Jul 2008
6
7
4
Aug 2008
2
4
5
Sep 2008
8
5
5
Oct 2008
3
3
5
Nov 2008
3
2
1
Dec 2008
2
5
3
Jan 2009
10
5
7
Feb 2009
8
5
7
Mar 2009
3
4
7
Apr 2009
3
9
10
May 2009
5
6
3
Jun 2009
2
6
9
Jul 2009
3
9
8
Aug 2009
17
7
13
Sep 2009
5
8
9
Oct 2009
10
3
6
Nov 2009
4
5
6
Dec 2009
6
5
10
Jan 2010
1
3
3
Feb 2010
2
3
8
Mar 2010
7
3
4
Apr 2010
5
2
2
May 2010
9
5
6
Jun 2010
3
6
6
Jul 2010
6
2
3
Aug 2010
2
5
11
Sep 2010
2
3
5
Oct 2010
6
3
12
Nov 2010
5
2
7
Dec 2010
4
5
5
Jan 2011
2
9
6
Feb 2011
6
4
8
Mar 2011
2
2
5
Apr 2011
3
2
4
May 2011
3
2
4
Jun 2011
3
4
11
Jul 2011
6
1
3
Aug 2011
6
1
5
Sep 2011
2
1
5
Oct 2011
2
2
5
Nov 2011
15
7
3
Dec 2011
9
4
5
Jan 2012
9
8
8
Feb 2012
3
4
17
Mar 2012
4
7
13
Apr 2012
13
5
22
May 2012
9
8
13
Jun 2012
4
7
6
Jul 2012
7
5
7
Aug 2012
6
11
8
Sep 2012
11
11
8
Oct 2012
8
7
9
Nov 2012
0
9
4
Dec 2012
0
6
12
Jan 2013
0
12
7
Feb 2013
0
7
3
Mar 2013
0
16
3
Apr 2013
0
11
4
May 2013
0
8
3
Jun 2013
3
5
2
Jul 2013
3
15
9
Aug 2013
6
8
0
Sep 2013
2
7
2
Oct 2013
3
4
1
Nov 2013
0
8
0
Dec 2013
10
11
1
Jan 2014
2
18
1
Feb 2014
2
11
1
Mar 2014
7
11
10
Apr 2014
4
5
14
May 2014
8
14
13
Jun 2014
6
12
1
Jul 2014
2
10
4
Aug 2014
4
6
1
Sep 2014
3
9
2
Oct 2014
9
3
2
Nov 2014
5
18
0
Dec 2014
7
8
6
Jan 2015
5
3
12
Feb 2015
9
3
4
Mar 2015
15
3
1
Apr 2015
9
6
0
May 2015
13
13
3
Jun 2015
2
2
5
Jul 2015
12
8
5
Aug 2015
8
5
0
Sep 2015
10
17
13
Oct 2015
3
6
0
Nov 2015
13
13
2
Dec 2015
20
28
0
Jan 2016
28
23
6
Feb 2016
21
23
4
Mar 2016
4
11
8
Apr 2016
6
2
7
May 2016
11
6
13
Jun 2016
4
7
1
Jul 2016
5
4
2
Aug 2016
9
10
1
Sep 2016
12
11
6
Oct 2016
22
18
5
Nov 2016
14
9
0
Dec 2016
19
13
4
Jan 2017
16
9
1
Feb 2017
6
9
4
Mar 2017
9
18
5
Apr 2017
3
15
5
May 2017
4
24
9
Jun 2017
2
11
9
Jul 2017
6
6
6
Aug 2017
7
7
6
Sep 2017
23
23
2
Oct 2017
14
14
3
Nov 2017
14
12
4
Dec 2017
5
5
2
Jan 2018
14
14
4
Feb 2018
15
13
4
Mar 2018
16
16
3
Apr 2018
18
19
1
May 2018
20
21
5
Jun 2018
23
23
1
Jul 2018
22
22
3
Aug 2018
14
14
5
Sep 2018
16
14
3
Oct 2018
25
25
2
Nov 2018
51
49
7
Dec 2018
50
50
6
Jan 2019
52
51
6
Feb 2019
54
54
5
Mar 2019
25
25
7
Apr 2019
17
13
8
May 2019
9
9
6
Jun 2019
9
9
4
Jul 2019
6
6
2
Aug 2019
2
2
3
Sep 2019
4
4
4
Oct 2019
7
7
1
Nov 2019
17
13
7
Dec 2019
67
67
8
Jan 2020
6
6
5
Feb 2020
2
2
3
Mar 2020
4
4
3
Apr 2020
2
2
1
May 2020
17
17
2
Jun 2020
8
7
2
Jul 2020
10
10
2
Aug 2020
4
2
4
Sep 2020
16
13
5
Oct 2020
15
14
3
Nov 2020
3
3
1
Dec 2020
7
7
3
Jan 2021
8
7
1
Feb 2021
2
2
3
Mar 2021
5
5
2
Apr 2021
8
8
2
May 2021
8
8
1
Jun 2021
10
10
2
Jul 2021
3
3
4
Aug 2021
3
3
4
Sep 2021
6
6
8
Oct 2021
13
13
16
Nov 2021
3
3
10
Dec 2021
3
4
2
Jan 2022
7
8
3
Feb 2022
10
8
4
Mar 2022
8
8
3
Apr 2022
5
5
1
May 2022
18
18
8
Jun 2022
22
20
3
Jul 2022
11
11
1
Aug 2022
26
26
7
Sep 2022
17
16
11
Oct 2022
27
27
4
Nov 2022
7
6
5
Dec 2022
10
6
1
Jan 2023
2
2
2
Feb 2023
32
32
2
Mar 2023
1
1
1
Apr 2023
3
3
1
May 2023
1
1
6
Jun 2023
6
6
8
Jul 2023
9
9
7
Aug 2023
1
1
8
Sep 2023
3
3
1
Oct 2023
7
7
6
Nov 2023
10
8
7
Dec 2023
39
8
1
Jan 2024
24
0
2
Feb 2024
19
0
2
Mar 2024
27
4
0
Total
2066
3991
2266
Read the full text or download the PDF:
Subscribe
Log in
Log in via Institution
Log in via OpenAthens
Log in via SAVIR
Log in using your username and password
For personal accounts OR managers of institutional accounts
Username
*
Password
*
Forgot your log in details?
Register a new account?
Forgot
your user name or password?
PDF