Pragmatic trials: how to adjust for the ‘Hawthorne effect’? | Thorax

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PostScript

Correspondence

Pragmatic trials: how to adjust for the ‘Hawthorne effect’?

Online download statistics by month:

Online download statistics by month: August 2011 to August 2024

	Abstract	Full	Pdf
Aug 2011	116	30	19
Sep 2011	84	13	7
Oct 2011	18	7	2
Nov 2011	35	6	3
Dec 2011	31	7	2
Jan 2012	26	4	3
Feb 2012	22	0	0
Mar 2012	24	4	3
Apr 2012	13	1	3
May 2012	214	25	39
Jun 2012	124	22	30
Jul 2012	60	8	10
Aug 2012	39	5	11
Sep 2012	55	7	8
Oct 2012	64	8	6
Nov 2012	0	6	10
Dec 2012	0	3	5
Jan 2013	0	6	11
Feb 2013	0	5	6
Mar 2013	0	2	5
Apr 2013	0	1	3
May 2013	0	6	8
Jun 2013	9	2	1
Jul 2013	15	0	1
Aug 2013	21	1	4
Sep 2013	11	0	1
Oct 2013	15	4	6
Nov 2013	10	4	3
Dec 2013	10	2	3
Jan 2014	12	1	2
Feb 2014	13	0	0
Mar 2014	28	2	7
Apr 2014	33	5	6
May 2014	21	0	4
Jun 2014	8	0	1
Jul 2014	21	4	3
Aug 2014	9	0	0
Sep 2014	6	1	2
Oct 2014	13	2	1
Nov 2014	11	3	6
Dec 2014	7	1	0
Jan 2015	4	0	1
Feb 2015	8	0	1
Mar 2015	10	0	2
Apr 2015	21	3	2
May 2015	6	3	1
Jun 2015	8	2	3
Jul 2015	9	4	5
Aug 2015	15	1	9
Sep 2015	19	4	9
Oct 2015	15	2	2
Nov 2015	11	2	5
Dec 2015	7	3	7
Jan 2016	14	5	12
Feb 2016	7	6	5
Mar 2016	13	3	10
Apr 2016	3	2	9
May 2016	9	2	0
Jun 2016	4	4	6
Jul 2016	18	6	10
Aug 2016	13	2	10
Sep 2016	22	3	7
Oct 2016	20	10	18
Nov 2016	6	1	5
Dec 2016	12	7	9
Jan 2017	13	4	4
Feb 2017	4	1	0
Mar 2017	1	7	2
Apr 2017	1	11	8
May 2017	1	4	6
Jun 2017	8	17	7
Jul 2017	12	12	14
Aug 2017	8	8	1
Sep 2017	14	14	7
Oct 2017	20	12	2
Nov 2017	20	10	5
Dec 2017	13	11	9
Jan 2018	19	13	6
Feb 2018	20	12	5
Mar 2018	12	12	2
Apr 2018	26	14	10
May 2018	23	24	5
Jun 2018	15	16	5
Jul 2018	15	11	1
Aug 2018	32	28	4
Sep 2018	14	12	1
Oct 2018	17	17	10
Nov 2018	17	15	7
Dec 2018	11	11	3
Jan 2019	15	15	4
Feb 2019	18	13	5
Mar 2019	12	11	9
Apr 2019	11	9	4
May 2019	9	9	12
Jun 2019	14	12	10
Jul 2019	2	2	9
Aug 2019	16	16	8
Sep 2019	20	14	6
Oct 2019	19	17	14
Nov 2019	40	22	10
Dec 2019	9	9	10
Jan 2020	39	27	11
Feb 2020	14	13	7
Mar 2020	9	7	10
Apr 2020	11	7	6
May 2020	17	13	14
Jun 2020	15	13	6
Jul 2020	13	12	7
Aug 2020	18	11	10
Sep 2020	30	26	9
Oct 2020	16	13	8
Nov 2020	21	13	10
Dec 2020	18	12	9
Jan 2021	23	13	10
Feb 2021	16	14	13
Mar 2021	19	19	9
Apr 2021	21	11	11
May 2021	10	10	6
Jun 2021	7	7	7
Jul 2021	15	15	9
Aug 2021	10	10	8
Sep 2021	11	11	10
Oct 2021	17	11	21
Nov 2021	13	11	23
Dec 2021	12	10	2
Jan 2022	13	13	10
Feb 2022	12	7	5
Mar 2022	16	14	7
Apr 2022	30	26	10
May 2022	35	27	21
Jun 2022	20	20	10
Jul 2022	21	14	5
Aug 2022	30	26	6
Sep 2022	31	28	18
Oct 2022	52	44	12
Nov 2022	19	19	4
Dec 2022	13	12	4
Jan 2023	19	11	5
Feb 2023	36	34	2
Mar 2023	24	20	1
Apr 2023	20	12	7
May 2023	8	6	10
Jun 2023	35	18	7
Jul 2023	4	4	7
Aug 2023	16	12	6
Sep 2023	11	11	4
Oct 2023	11	11	4
Nov 2023	24	17	2
Dec 2023	36	22	1
Jan 2024	8	8	5
Feb 2024	16	14	3
Mar 2024	15	8	46
Apr 2024	38	25	11
May 2024	40	23	6
Jun 2024	74	1	0
Jul 2024	76	2	3
Aug 2024	75	2	1
Total	3266	1548	1097