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Volume 62, Issue 3
Loss and representativeness in a biomedical survey at age 45 years: 1958 British birth cohort
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Loss and representativeness in a biomedical survey at age 45 years: 1958 British birth cohort
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Feb 2008
76
23
53
Mar 2008
25
12
19
Apr 2008
9
9
10
May 2008
16
15
16
Jun 2008
10
5
11
Jul 2008
6
0
1
Aug 2008
10
6
7
Sep 2008
10
5
5
Oct 2008
10
7
3
Nov 2008
14
4
4
Dec 2008
8
3
4
Jan 2009
10
4
3
Feb 2009
15
7
7
Mar 2009
14
2
4
Apr 2009
14
5
6
May 2009
9
1
5
Jun 2009
12
4
3
Jul 2009
3
3
3
Aug 2009
9
5
5
Sep 2009
8
0
4
Oct 2009
9
3
1
Nov 2009
17
6
14
Dec 2009
6
3
9
Jan 2010
7
5
4
Feb 2010
7
6
9
Mar 2010
15
4
3
Apr 2010
5
1
3
May 2010
7
9
6
Jun 2010
24
8
17
Jul 2010
16
2
10
Aug 2010
12
4
8
Sep 2010
16
1
2
Oct 2010
7
3
2
Nov 2010
12
5
4
Dec 2010
6
3
1
Jan 2011
8
1
2
Feb 2011
13
4
5
Mar 2011
16
5
8
Apr 2011
8
0
2
May 2011
12
16
9
Jun 2011
16
2
1
Jul 2011
23
2
4
Aug 2011
20
6
5
Sep 2011
17
1
1
Oct 2011
17
6
9
Nov 2011
19
5
6
Dec 2011
10
2
2
Jan 2012
26
3
6
Feb 2012
16
9
3
Mar 2012
8
5
2
Apr 2012
17
5
5
May 2012
11
9
6
Jun 2012
21
7
5
Jul 2012
17
5
6
Aug 2012
27
2
2
Sep 2012
19
4
2
Oct 2012
31
1
4
Nov 2012
16
1
0
Dec 2012
20
1
4
Jan 2013
33
2
3
Feb 2013
27
3
6
Mar 2013
27
1
3
Apr 2013
17
4
2
May 2013
16
1
4
Jun 2013
14
0
1
Jul 2013
27
1
5
Aug 2013
31
4
5
Sep 2013
42
4
5
Oct 2013
18
2
1
Nov 2013
18
0
4
Dec 2013
20
0
2
Jan 2014
39
2
3
Feb 2014
11
1
1
Mar 2014
25
3
2
Apr 2014
22
0
1
May 2014
29
5
3
Jun 2014
12
6
5
Jul 2014
17
2
4
Aug 2014
16
3
2
Sep 2014
13
3
1
Oct 2014
27
0
7
Nov 2014
24
5
3
Dec 2014
26
1
3
Jan 2015
18
0
2
Feb 2015
22
4
2
Mar 2015
20
2
1
Apr 2015
7
3
2
May 2015
12
1
13
Jun 2015
15
1
2
Jul 2015
14
0
2
Aug 2015
20
2
2
Sep 2015
47
1
5
Oct 2015
6
1
1
Nov 2015
11
2
2
Dec 2015
31
1
1
Jan 2016
28
1
3
Feb 2016
15
2
3
Mar 2016
13
2
3
Apr 2016
13
2
3
May 2016
21
1
3
Jun 2016
13
0
4
Jul 2016
13
1
1
Aug 2016
16
5
6
Sep 2016
31
4
3
Oct 2016
41
6
5
Nov 2016
55
3
2
Dec 2016
11
2
0
Jan 2017
48
2
2
Feb 2017
30
2
0
Mar 2017
29
4
1
Apr 2017
21
7
2
May 2017
14
3
0
Jun 2017
23
8
5
Jul 2017
31
8
3
Aug 2017
16
2
1
Sep 2017
47
7
1
Oct 2017
26
2
2
Nov 2017
62
9
2
Dec 2017
47
6
0
Jan 2018
29
10
1
Feb 2018
89
19
3
Mar 2018
32
9
2
Apr 2018
57
10
5
May 2018
78
9
7
Jun 2018
47
4
2
Jul 2018
39
13
4
Aug 2018
42
14
0
Sep 2018
35
9
2
Oct 2018
40
5
2
Nov 2018
52
8
1
Dec 2018
50
8
3
Jan 2019
57
7
3
Feb 2019
33
3
2
Mar 2019
53
7
4
Apr 2019
10
2
1
May 2019
33
2
2
Jun 2019
18
0
1
Jul 2019
25
9
2
Aug 2019
24
2
3
Sep 2019
16
0
1
Oct 2019
42
4
5
Nov 2019
21
10
3
Dec 2019
26
6
0
Jan 2020
43
11
0
Feb 2020
66
10
6
Mar 2020
27
9
2
Apr 2020
34
8
1
May 2020
58
9
4
Jun 2020
49
12
9
Jul 2020
41
12
3
Aug 2020
32
5
2
Sep 2020
37
5
1
Oct 2020
60
8
3
Nov 2020
41
3
1
Dec 2020
48
5
3
Jan 2021
31
2
3
Feb 2021
29
7
1
Mar 2021
97
12
5
Apr 2021
38
4
1
May 2021
10
2
2
Jun 2021
6
6
6
Jul 2021
6
4
1
Aug 2021
9
5
0
Sep 2021
20
16
0
Oct 2021
40
7
3
Nov 2021
68
7
2
Dec 2021
41
5
1
Jan 2022
61
8
4
Feb 2022
65
4
3
Mar 2022
77
5
1
Apr 2022
199
8
2
May 2022
429
7
11
Jun 2022
76
10
4
Jul 2022
43
1
1
Aug 2022
56
1
0
Sep 2022
93
16
4
Oct 2022
101
5
2
Nov 2022
119
10
3
Dec 2022
41
9
4
Jan 2023
87
9
1
Feb 2023
136
6
2
Mar 2023
51
2
0
Apr 2023
32
8
0
May 2023
30
6
4
Jun 2023
26
3
0
Jul 2023
39
4
2
Aug 2023
59
14
0
Total
5999
925
698
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