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BMJ Journals
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Volume 31, Issue 2
Bias resulting from missing information: some epidemiological findings.
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Research Article
Bias resulting from missing information: some epidemiological findings.
Online download statistics by month:
Online download statistics by month: December 2008 to September 2024
Abstract
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Dec 2008
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Jan 2009
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Apr 2009
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May 2009
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Jun 2009
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Aug 2009
1
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1
Sep 2009
3
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1
Oct 2009
3
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4
Nov 2009
8
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2
Dec 2009
5
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1
Jan 2010
11
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6
Feb 2010
3
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Mar 2010
7
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1
Apr 2010
4
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May 2010
12
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2
Jun 2010
2
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2
Jul 2010
3
0
2
Aug 2010
1
0
0
Oct 2010
9
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3
Nov 2010
8
0
3
Dec 2010
3
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0
Jan 2011
7
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0
Feb 2011
2
0
1
Mar 2011
5
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1
Apr 2011
2
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0
May 2011
3
0
1
Jun 2011
2
0
1
Jul 2011
3
0
0
Aug 2011
6
0
2
Sep 2011
3
0
0
Oct 2011
2
0
0
Nov 2011
5
0
1
Dec 2011
2
0
0
Jan 2012
3
0
3
Feb 2012
3
0
2
Mar 2012
5
0
0
Apr 2012
7
0
5
May 2012
6
0
0
Jun 2012
5
0
4
Jul 2012
3
0
1
Aug 2012
3
0
0
Sep 2012
1
0
1
Oct 2012
12
0
5
Nov 2012
12
0
2
Dec 2012
7
0
2
Jan 2013
23
0
4
Feb 2013
4
0
1
Mar 2013
12
0
5
Apr 2013
7
0
3
May 2013
7
1
5
Jun 2013
9
0
4
Jul 2013
1
0
0
Aug 2013
2
0
0
Sep 2013
6
0
0
Oct 2013
5
0
1
Nov 2013
4
0
2
Dec 2013
4
0
2
Jan 2014
8
0
1
Feb 2014
14
0
2
Mar 2014
7
0
1
Apr 2014
9
0
3
May 2014
7
1
0
Jun 2014
3
0
0
Jul 2014
7
1
1
Aug 2014
3
1
0
Sep 2014
8
1
4
Oct 2014
8
1
2
Nov 2014
13
0
3
Dec 2014
1
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3
Jan 2015
2
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27
Feb 2015
3
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9
Mar 2015
9
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2
Apr 2015
3
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2
May 2015
2
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Jun 2015
1
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Jul 2015
4
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2
Aug 2015
7
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Sep 2015
10
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Oct 2015
5
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Nov 2015
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Dec 2015
8
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1
Jan 2016
6
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3
Feb 2016
3
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Mar 2016
5
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6
Apr 2016
3
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3
May 2016
1
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Jun 2016
3
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Jul 2016
3
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1
Aug 2016
5
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1
Sep 2016
23
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7
Oct 2016
6
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3
Nov 2016
2
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5
Dec 2016
2
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9
Jan 2017
7
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5
Feb 2017
3
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5
Mar 2017
6
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Apr 2017
10
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2
May 2017
8
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Jun 2017
15
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6
Jul 2017
16
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1
Aug 2017
8
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1
Sep 2017
16
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2
Oct 2017
30
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3
Nov 2017
22
0
6
Dec 2017
26
0
2
Jan 2018
28
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4
Feb 2018
24
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2
Mar 2018
26
0
25
Apr 2018
52
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23
May 2018
16
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19
Jun 2018
10
0
14
Jul 2018
30
0
14
Aug 2018
18
0
9
Sep 2018
20
0
16
Oct 2018
22
0
21
Nov 2018
38
0
21
Dec 2018
18
0
20
Jan 2019
12
0
16
Feb 2019
22
0
13
Mar 2019
14
0
27
Apr 2019
21
0
40
May 2019
23
0
21
Jun 2019
19
0
20
Jul 2019
22
0
12
Aug 2019
20
0
10
Sep 2019
12
0
25
Oct 2019
32
0
18
Nov 2019
32
0
4
Dec 2019
36
0
6
Jan 2020
26
0
3
Feb 2020
16
0
2
Mar 2020
14
0
4
Apr 2020
28
0
4
May 2020
30
0
6
Jun 2020
20
0
8
Jul 2020
14
0
2
Aug 2020
8
0
5
Sep 2020
56
0
19
Oct 2020
28
0
5
Nov 2020
14
0
5
Dec 2020
34
0
10
Jan 2021
22
0
5
Feb 2021
8
0
4
Mar 2021
18
0
12
Apr 2021
28
0
10
May 2021
9
0
5
Jun 2021
0
0
6
Jul 2021
0
0
5
Aug 2021
0
0
8
Sep 2021
0
0
4
Oct 2021
8
0
19
Nov 2021
26
0
22
Dec 2021
36
0
4
Jan 2022
24
0
2
Feb 2022
24
0
8
Mar 2022
23
0
7
Apr 2022
36
0
2
May 2022
60
0
12
Jun 2022
55
0
7
Jul 2022
32
0
6
Aug 2022
48
0
5
Sep 2022
40
0
15
Oct 2022
108
0
11
Nov 2022
40
0
13
Dec 2022
44
0
5
Jan 2023
34
0
4
Feb 2023
54
0
1
Mar 2023
16
0
0
Apr 2023
22
0
14
May 2023
8
0
2
Jun 2023
22
0
3
Jul 2023
18
0
5
Aug 2023
24
0
7
Sep 2023
26
0
1
Oct 2023
32
0
2
Nov 2023
28
0
5
Dec 2023
50
0
6
Jan 2024
24
0
1
Feb 2024
28
0
1
Mar 2024
24
0
0
Apr 2024
62
0
0
May 2024
50
0
2
Jun 2024
21
0
1
Jul 2024
22
0
1
Aug 2024
50
0
3
Sep 2024
41
0
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Total
2864
6
966
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