Skip to main content
Subscribe
Log In
More
Log in via Institution
Log in via OpenAthens
Log in via RCEM
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
Search for this keyword
Advanced search
Close
More
Main menu
Latest content
Current issue
Archive
Authors
About
Subscribe
Log in
More
Log in via Institution
Log in via OpenAthens
Log in via RCEM
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 23, Issue 5
Primary Survey
Email alerts
Article metrics
Article menu
Article
Text
Article
info
Citation
Tools
Share
Rapid Responses
Article
metrics
Alerts
PDF
Primary Survey
Primary Survey
Free
Online download statistics by month:
Online download statistics by month: April 2006 to March 2024
Abstract
Full
Pdf
Apr 2006
45
114
33
May 2006
48
241
42
Jun 2006
19
61
9
Jul 2006
7
19
4
Aug 2006
18
38
5
Sep 2006
19
29
5
Oct 2006
1
13
2
Nov 2006
1
12
2
Dec 2006
2
7
2
Jan 2007
8
14
3
Feb 2007
6
12
5
Mar 2007
2
20
6
Apr 2007
5
14
1
May 2007
1
8
6
Jun 2007
3
7
4
Jul 2007
2
8
0
Aug 2007
0
4
2
Sep 2007
1
4
1
Oct 2007
1
6
3
Nov 2007
3
8
2
Dec 2007
0
5
1
Jan 2008
2
8
0
Feb 2008
1
3
1
Mar 2008
0
6
2
Apr 2008
0
2
2
May 2008
0
0
1
Jun 2008
0
3
0
Jul 2008
0
2
0
Aug 2008
1
0
2
Sep 2008
0
2
2
Oct 2008
0
2
2
Nov 2008
0
3
3
Dec 2008
0
1
2
Jan 2009
0
1
0
Feb 2009
0
1
1
Mar 2009
0
3
1
Apr 2009
1
4
0
May 2009
0
1
0
Jun 2009
0
3
3
Jul 2009
0
0
1
Aug 2009
1
1
0
Oct 2009
0
5
2
Dec 2009
5
3
3
Jan 2010
0
0
1
Feb 2010
1
2
4
Mar 2010
0
3
1
Apr 2010
0
4
1
May 2010
4
4
0
Jun 2010
1
4
5
Jul 2010
0
0
2
Aug 2010
1
6
2
Sep 2010
0
4
2
Oct 2010
7
8
2
Nov 2010
2
7
3
Dec 2010
1
5
6
Jan 2011
1
4
5
Feb 2011
3
7
3
Mar 2011
3
7
4
Apr 2011
1
4
7
May 2011
3
5
5
Jun 2011
3
6
9
Jul 2011
5
6
5
Aug 2011
2
3
6
Sep 2011
4
5
3
Oct 2011
6
5
3
Nov 2011
8
8
4
Dec 2011
13
10
7
Jan 2012
5
3
3
Feb 2012
2
1
2
Mar 2012
4
5
5
Apr 2012
7
4
6
May 2012
4
4
6
Jun 2012
7
6
3
Jul 2012
4
1
5
Aug 2012
4
5
3
Sep 2012
8
4
2
Oct 2012
4
1
3
Nov 2012
0
7
4
Dec 2012
0
4
1
Jan 2013
0
9
2
Feb 2013
0
3
4
Mar 2013
0
2
0
Apr 2013
0
9
3
May 2013
0
4
2
Jun 2013
2
1
0
Jul 2013
1
1
1
Aug 2013
2
0
1
Sep 2013
0
0
1
Oct 2013
1
1
0
Nov 2013
0
3
1
Dec 2013
1
0
0
Jan 2014
2
1
1
Feb 2014
3
2
0
Mar 2014
4
5
1
Apr 2014
4
1
1
Jun 2014
0
2
2
Jul 2014
1
0
2
Sep 2014
3
3
1
Oct 2014
2
3
0
Nov 2014
0
1
0
Dec 2014
1
1
4
Feb 2015
0
0
2
Mar 2015
1
0
2
Apr 2015
0
1
2
Jun 2015
3
1
0
Jul 2015
1
0
1
Sep 2015
0
2
0
Oct 2015
4
0
0
Nov 2015
2
3
0
Dec 2015
0
1
0
Jan 2016
0
0
8
Feb 2016
1
0
0
Mar 2016
1
1
5
Apr 2016
1
0
0
May 2016
2
1
1
Jul 2016
0
1
2
Aug 2016
0
0
4
Sep 2016
0
0
1
Oct 2016
0
3
5
Nov 2016
2
0
0
Dec 2016
0
1
1
Jan 2017
0
1
0
Feb 2017
1
1
2
Mar 2017
0
0
2
Apr 2017
0
3
0
May 2017
0
3
0
Jun 2017
1
3
1
Jul 2017
6
6
1
Aug 2017
5
5
0
Sep 2017
6
6
0
Oct 2017
12
12
0
Nov 2017
7
7
1
Dec 2017
14
14
0
Jan 2018
21
21
0
Feb 2018
26
24
2
Mar 2018
17
17
0
Apr 2018
5
5
0
May 2018
8
8
0
Jun 2018
5
5
0
Jul 2018
4
4
0
Aug 2018
4
4
1
Oct 2018
8
8
0
Nov 2018
10
10
0
Dec 2018
16
16
0
Jan 2019
12
12
0
Feb 2019
10
11
1
Mar 2019
4
4
0
Apr 2019
2
2
1
May 2019
0
0
1
Jun 2019
1
1
0
Jul 2019
1
1
0
Aug 2019
1
1
2
Sep 2019
0
0
1
Oct 2019
6
6
1
Nov 2019
1
1
0
Dec 2019
1
1
1
Jan 2020
2
2
2
Feb 2020
4
4
1
Mar 2020
1
1
0
Apr 2020
1
1
0
May 2020
5
5
0
Jun 2020
3
3
0
Jul 2020
6
6
0
Aug 2020
2
2
0
Sep 2020
4
4
0
Oct 2020
4
4
2
Nov 2020
6
5
4
Dec 2020
5
5
0
Jan 2021
2
2
0
Feb 2021
1
1
2
Mar 2021
0
0
2
Apr 2021
3
3
1
May 2021
2
2
0
Jun 2021
4
4
0
Jul 2021
1
1
0
Aug 2021
2
1
1
Sep 2021
5
5
0
Oct 2021
9
5
1
Nov 2021
6
6
2
Dec 2021
18
6
1
Jan 2022
14
6
4
Feb 2022
3
3
2
Mar 2022
8
2
1
Apr 2022
9
5
1
May 2022
7
3
1
Jun 2022
4
1
0
Jul 2022
8
2
0
Aug 2022
14
4
1
Sep 2022
15
15
1
Oct 2022
4
2
1
Nov 2022
3
3
3
Jan 2023
4
3
0
Feb 2023
27
27
2
Mar 2023
1
1
0
Apr 2023
4
3
4
May 2023
2
2
3
Jun 2023
1
1
1
Jul 2023
4
4
4
Aug 2023
3
3
1
Sep 2023
43
43
0
Oct 2023
4
4
2
Nov 2023
8
8
0
Dec 2023
10
10
2
Jan 2024
5
5
0
Feb 2024
8
8
0
Mar 2024
2
2
2
Total
892
1398
433
Read the full text or download the PDF:
Subscribe
Log in
Log in via Institution
Log in via OpenAthens
Log in via RCEM
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