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Volume 84, Issue 2
Evidence of selection bias in preterm survival studies: a systematic review
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Original article
Evidence of selection bias in preterm survival studies: a systematic review
Online download statistics by month:
Online download statistics by month: May 2001 to November 2024
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May 2001
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May 2003
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Sep 2003
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Oct 2003
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Jan 2004
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Feb 2004
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Mar 2004
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76
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Apr 2004
19
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6
May 2004
15
37
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Jun 2004
35
42
11
Jul 2004
44
49
12
Aug 2004
44
51
7
Sep 2004
42
73
28
Oct 2004
27
68
28
Nov 2004
14
40
26
Dec 2004
8
57
11
Jan 2005
27
113
29
Feb 2005
20
77
11
Mar 2005
33
80
27
Apr 2005
20
67
14
May 2005
24
51
7
Jun 2005
24
34
9
Jul 2005
16
48
4
Aug 2005
12
57
17
Sep 2005
12
63
18
Oct 2005
24
64
16
Nov 2005
13
78
22
Dec 2005
12
64
18
Jan 2006
18
49
18
Feb 2006
11
46
12
Mar 2006
10
55
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Apr 2006
10
36
9
May 2006
18
33
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Jun 2006
16
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Jul 2006
11
32
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Aug 2006
7
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Sep 2006
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Oct 2006
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Nov 2006
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Dec 2006
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Jan 2007
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Feb 2007
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Mar 2007
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Apr 2007
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May 2007
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Jun 2007
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Jul 2007
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Aug 2007
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Sep 2007
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Oct 2007
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Nov 2007
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Jan 2008
14
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7
Feb 2008
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Jul 2008
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Aug 2008
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Sep 2008
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Oct 2008
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Nov 2008
21
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4
Dec 2008
8
1
1
Jan 2009
13
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3
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2
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20
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Apr 2009
13
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May 2009
4
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Oct 2009
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1
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17
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2
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6
1
3
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8
6
4
Feb 2010
5
2
2
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8
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1
Apr 2010
2
2
5
May 2010
11
4
3
Jun 2010
5
4
3
Jul 2010
4
2
4
Aug 2010
4
1
0
Sep 2010
9
1
1
Oct 2010
32
5
5
Nov 2010
11
0
0
Dec 2010
8
4
2
Jan 2011
6
0
0
Feb 2011
13
2
1
Mar 2011
7
2
1
Apr 2011
3
1
2
May 2011
4
8
11
Jun 2011
24
1
1
Jul 2011
11
2
2
Aug 2011
9
1
1
Sep 2011
8
1
1
Oct 2011
17
8
1
Nov 2011
21
4
3
Dec 2011
24
23
2
Jan 2012
18
15
2
Feb 2012
10
9
3
Mar 2012
10
12
6
Apr 2012
12
10
3
May 2012
17
13
6
Jun 2012
11
6
6
Jul 2012
12
17
4
Aug 2012
15
16
7
Sep 2012
10
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1
Oct 2012
26
10
1
Nov 2012
13
16
5
Dec 2012
21
9
3
Jan 2013
33
15
6
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26
6
9
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24
7
5
Apr 2013
25
13
9
May 2013
26
19
3
Jun 2013
11
2
4
Jul 2013
24
2
2
Aug 2013
30
4
5
Sep 2013
17
0
1
Oct 2013
26
1
3
Nov 2013
15
2
2
Dec 2013
9
5
2
Jan 2014
7
11
2
Feb 2014
6
26
0
Mar 2014
11
14
1
Apr 2014
12
14
1
May 2014
9
4
1
Jun 2014
20
11
1
Jul 2014
16
8
3
Aug 2014
14
8
2
Sep 2014
4
11
4
Oct 2014
16
11
3
Nov 2014
17
7
3
Dec 2014
8
8
0
Jan 2015
18
5
3
Feb 2015
9
7
3
Mar 2015
13
9
1
Apr 2015
11
19
8
May 2015
6
7
6
Jun 2015
12
13
0
Jul 2015
9
8
0
Aug 2015
14
8
2
Sep 2015
9
5
2
Oct 2015
6
3
1
Nov 2015
9
5
3
Dec 2015
10
3
4
Jan 2016
12
14
1
Feb 2016
11
5
0
Mar 2016
14
0
10
Apr 2016
10
2
8
May 2016
3
4
5
Jun 2016
14
6
6
Jul 2016
11
3
3
Aug 2016
11
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1
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11
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2
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11
5
5
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11
7
6
Dec 2016
17
10
2
Jan 2017
12
2
6
Feb 2017
8
2
1
Mar 2017
2
6
3
Apr 2017
1
14
1
May 2017
0
22
4
Jun 2017
7
8
5
Jul 2017
14
12
4
Aug 2017
11
10
0
Sep 2017
32
26
1
Oct 2017
16
12
5
Nov 2017
20
14
5
Dec 2017
22
12
4
Jan 2018
28
22
4
Feb 2018
21
13
2
Mar 2018
17
13
0
Apr 2018
28
24
4
May 2018
27
21
5
Jun 2018
18
16
2
Jul 2018
22
22
3
Aug 2018
26
18
5
Sep 2018
22
20
3
Oct 2018
22
18
4
Nov 2018
29
29
5
Dec 2018
17
17
3
Jan 2019
15
15
5
Feb 2019
27
19
4
Mar 2019
21
16
65
Apr 2019
26
24
135
May 2019
27
20
167
Jun 2019
16
10
181
Jul 2019
15
11
108
Aug 2019
15
15
200
Sep 2019
16
14
195
Oct 2019
22
20
74
Nov 2019
16
13
39
Dec 2019
19
10
42
Jan 2020
14
12
25
Feb 2020
28
17
38
Mar 2020
30
26
68
Apr 2020
31
19
68
May 2020
16
14
20
Jun 2020
17
14
17
Jul 2020
22
17
31
Aug 2020
19
13
58
Sep 2020
14
10
11
Oct 2020
23
16
6
Nov 2020
23
15
31
Dec 2020
11
11
10
Jan 2021
16
12
11
Feb 2021
20
14
34
Mar 2021
12
6
10
Apr 2021
18
16
12
May 2021
25
22
14
Jun 2021
20
18
7
Jul 2021
17
17
9
Aug 2021
25
24
42
Sep 2021
32
32
8
Oct 2021
51
35
24
Nov 2021
28
24
22
Dec 2021
28
20
8
Jan 2022
51
26
9
Feb 2022
24
16
5
Mar 2022
48
25
4
Apr 2022
60
32
7
May 2022
101
45
22
Jun 2022
83
33
9
Jul 2022
69
33
9
Aug 2022
65
33
5
Sep 2022
68
35
12
Oct 2022
66
27
9
Nov 2022
51
23
10
Dec 2022
70
22
1
Jan 2023
78
22
8
Feb 2023
105
57
5
Mar 2023
29
14
4
Apr 2023
29
12
9
May 2023
25
13
9
Jun 2023
10
8
4
Jul 2023
48
18
8
Aug 2023
31
21
10
Sep 2023
15
13
4
Oct 2023
42
31
5
Nov 2023
107
81
12
Dec 2023
472
60
6
Jan 2024
202
11
2
Feb 2024
305
1
1
Mar 2024
225
5
1
Apr 2024
211
6
2
May 2024
113
4
2
Jun 2024
88
3
1
Jul 2024
77
11
0
Aug 2024
90
0
0
Sep 2024
74
5
1
Oct 2024
91
2
1
Nov 2024
125
17
2
Total
7300
5819
3499
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