Bias resulting from missing information: some epidemiological findings.

A Cox; M Rutter; B Yule; D Quinton

doi:10.1136/jech.31.2.131

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Research Article

Bias resulting from missing information: some epidemiological findings.

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	Abstract	Full	Pdf
Dec 2008	1	0	0
Jan 2009	1	0	0
Mar 2009	7	0	2
Apr 2009	5	0	2
May 2009	1	0	0
Jun 2009	1	0	0
Aug 2009	1	0	1
Sep 2009	3	0	1
Oct 2009	3	0	4
Nov 2009	8	0	2
Dec 2009	5	0	1
Jan 2010	11	0	6
Feb 2010	3	0	0
Mar 2010	7	0	1
Apr 2010	4	0	0
May 2010	12	0	2
Jun 2010	2	0	2
Jul 2010	3	0	2
Aug 2010	1	0	0
Oct 2010	9	0	3
Nov 2010	8	0	3
Dec 2010	3	0	0
Jan 2011	7	0	0
Feb 2011	2	0	1
Mar 2011	5	0	1
Apr 2011	2	0	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	0	3
Jan 2015	2	0	27
Feb 2015	3	0	9
Mar 2015	9	0	2
Apr 2015	3	0	2
May 2015	2	0	1
Jun 2015	1	0	0
Jul 2015	4	0	2
Aug 2015	7	0	2
Sep 2015	10	0	5
Oct 2015	5	0	2
Nov 2015	1	0	0
Dec 2015	8	0	1
Jan 2016	6	0	3
Feb 2016	3	0	2
Mar 2016	5	0	6
Apr 2016	3	0	3
May 2016	1	0	0
Jun 2016	3	0	0
Jul 2016	3	0	1
Aug 2016	5	0	1
Sep 2016	23	0	7
Oct 2016	6	0	3
Nov 2016	2	0	5
Dec 2016	2	0	9
Jan 2017	7	0	5
Feb 2017	3	0	5
Mar 2017	6	0	0
Apr 2017	10	0	2
May 2017	8	0	0
Jun 2017	15	0	6
Jul 2017	16	0	1
Aug 2017	8	0	1
Sep 2017	16	0	2
Oct 2017	30	0	3
Nov 2017	22	0	6
Dec 2017	26	0	2
Jan 2018	28	0	4
Feb 2018	24	0	2
Mar 2018	26	0	25
Apr 2018	52	0	23
May 2018	16	0	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
Total	2618	6	959

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