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Volume 63, Issue 6
The issue of confounding in epidemiological studies of ambient air pollution and pregnancy outcomes
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Theory and methods
The issue of confounding in epidemiological studies of ambient air pollution and pregnancy outcomes
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Online download statistics by month: February 2009 to March 2024
Abstract
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Feb 2009
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May 2009
118
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Jun 2009
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Sep 2009
27
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Oct 2009
32
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Nov 2009
28
7
8
Dec 2009
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1
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Jan 2010
20
19
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Feb 2010
13
3
6
Mar 2010
15
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9
Apr 2010
11
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8
May 2010
14
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Jun 2010
21
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16
Jul 2010
22
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Aug 2010
8
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8
Sep 2010
41
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1
Oct 2010
25
3
7
Nov 2010
16
3
9
Dec 2010
12
1
5
Jan 2011
17
2
9
Feb 2011
18
6
10
Mar 2011
15
3
11
Apr 2011
22
1
3
May 2011
16
1
7
Jun 2011
14
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2
Jul 2011
13
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2
Aug 2011
21
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6
Sep 2011
19
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4
Oct 2011
32
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6
Nov 2011
27
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4
Dec 2011
28
2
7
Jan 2012
33
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4
Feb 2012
20
1
4
Mar 2012
26
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2
Apr 2012
35
2
3
May 2012
34
9
6
Jun 2012
16
1
2
Jul 2012
18
0
1
Aug 2012
16
1
3
Sep 2012
19
2
5
Oct 2012
24
3
2
Nov 2012
19
3
2
Dec 2012
8
2
5
Jan 2013
46
3
4
Feb 2013
15
1
1
Mar 2013
37
3
2
Apr 2013
26
1
7
May 2013
23
0
2
Jun 2013
10
2
2
Jul 2013
11
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0
Aug 2013
13
0
3
Sep 2013
3
1
1
Oct 2013
16
0
1
Nov 2013
12
1
1
Dec 2013
5
0
0
Jan 2014
4
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0
Feb 2014
6
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0
Mar 2014
17
6
5
Apr 2014
16
1
3
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18
1
2
Jun 2014
15
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1
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7
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10
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Oct 2014
10
1
1
Nov 2014
7
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Dec 2014
32
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Jan 2015
28
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9
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5
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30
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2
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59
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Oct 2017
47
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3
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47
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Dec 2017
25
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Jan 2018
27
1
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Feb 2018
23
2
3
Mar 2018
34
2
1
Apr 2018
25
4
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May 2018
37
1
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Jun 2018
56
0
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Jul 2018
62
2
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Aug 2018
43
1
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Sep 2018
19
0
0
Oct 2018
25
1
1
Nov 2018
12
0
0
Dec 2018
30
0
0
Jan 2019
26
3
1
Feb 2019
19
0
1
Mar 2019
36
4
2
Apr 2019
29
1
1
May 2019
23
1
0
Jun 2019
10
0
0
Jul 2019
10
1
0
Aug 2019
3
1
1
Sep 2019
15
1
1
Oct 2019
21
5
1
Nov 2019
24
0
1
Dec 2019
27
3
3
Jan 2020
26
0
0
Feb 2020
22
0
0
Mar 2020
13
1
0
Apr 2020
8
2
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May 2020
22
1
2
Jun 2020
32
1
1
Jul 2020
11
1
0
Aug 2020
18
0
0
Sep 2020
35
3
1
Oct 2020
33
2
1
Nov 2020
24
0
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Dec 2020
24
0
0
Jan 2021
28
0
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Feb 2021
29
2
0
Mar 2021
32
2
1
Apr 2021
18
6
0
May 2021
5
1
2
Jun 2021
4
4
2
Jul 2021
6
0
0
Aug 2021
5
0
0
Sep 2021
3
1
1
Oct 2021
23
1
1
Nov 2021
78
1
0
Dec 2021
44
2
0
Jan 2022
27
4
2
Feb 2022
26
1
3
Mar 2022
34
4
3
Apr 2022
24
2
0
May 2022
120
1
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Jun 2022
41
3
0
Jul 2022
26
3
4
Aug 2022
44
2
2
Sep 2022
40
1
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Oct 2022
106
2
3
Nov 2022
47
3
0
Dec 2022
55
1
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Jan 2023
14
2
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Feb 2023
10
1
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Mar 2023
14
10
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Apr 2023
8
2
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May 2023
23
0
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Jun 2023
18
0
0
Jul 2023
16
4
0
Aug 2023
48
0
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Sep 2023
14
0
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Oct 2023
16
0
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Nov 2023
21
2
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Dec 2023
44
3
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Jan 2024
48
1
4
Feb 2024
24
0
5
Mar 2024
25
1
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Total
4156
364
560
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