What is a randomised controlled trial?

Andrea Nelson

doi:10.1136/ebn.2011.100184

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What is a randomised controlled trial?

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	Abstract	Full	Pdf
Sep 2011	185	38	58
Oct 2011	212	43	71
Nov 2011	194	41	72
Dec 2011	139	27	47
Jan 2012	104	12	27
Feb 2012	95	16	35
Mar 2012	63	10	36
Apr 2012	96	20	29
May 2012	80	15	31
Jun 2012	37	7	15
Jul 2012	50	9	35
Aug 2012	39	21	11
Sep 2012	82	14	18
Oct 2012	77	41	204
Nov 2012	0	20	28
Dec 2012	0	18	31
Jan 2013	0	39	75
Feb 2013	0	5	24
Mar 2013	0	31	36
Apr 2013	0	23	43
May 2013	0	14	29
Jun 2013	85	6	16
Jul 2013	77	14	30
Aug 2013	51	56	16
Sep 2013	59	15	11
Oct 2013	54	10	18
Nov 2013	41	11	17
Dec 2013	26	11	31
Jan 2014	59	15	50
Feb 2014	105	26	308
Mar 2014	89	9	45
Apr 2014	106	7	35
May 2014	103	11	29
Jun 2014	92	20	33
Jul 2014	35	2	17
Aug 2014	27	4	9
Sep 2014	43	8	9
Oct 2014	74	10	24
Nov 2014	54	19	23
Dec 2014	36	5	33
Jan 2015	76	16	28
Feb 2015	90	32	110
Mar 2015	183	61	428
Apr 2015	155	17	58
May 2015	109	11	33
Jun 2015	64	7	11
Jul 2015	64	5	16
Aug 2015	41	6	12
Sep 2015	91	3	27
Oct 2015	76	7	23
Nov 2015	110	11	12
Dec 2015	93	14	34
Jan 2016	262	15	32
Feb 2016	70	7	18
Mar 2016	83	6	21
Apr 2016	179	23	26
May 2016	207	46	246
Jun 2016	128	30	301
Jul 2016	78	3	17
Aug 2016	53	6	13
Sep 2016	112	12	18
Oct 2016	143	9	36
Nov 2016	93	8	13
Dec 2016	64	10	9
Jan 2017	134	31	32
Feb 2017	122	45	12
Mar 2017	215	80	37
Apr 2017	828	684	153
May 2017	187	92	22
Jun 2017	119	38	20
Jul 2017	248	18	9
Aug 2017	225	21	6
Sep 2017	402	85	25
Oct 2017	462	56	18
Nov 2017	362	27	13
Dec 2017	310	27	10
Jan 2018	321	37	23
Feb 2018	411	54	25
Mar 2018	470	77	40
Apr 2018	1971	577	149
May 2018	481	41	22
Jun 2018	448	53	24
Jul 2018	318	17	15
Aug 2018	391	29	7
Sep 2018	788	106	54
Oct 2018	806	57	31
Nov 2018	659	49	17
Dec 2018	521	42	13
Jan 2019	748	65	32
Feb 2019	543	63	40
Mar 2019	1542	364	143
Apr 2019	1809	511	276
May 2019	652	147	71
Jun 2019	397	35	15
Jul 2019	398	38	12
Aug 2019	406	49	34
Sep 2019	383	41	22
Oct 2019	571	64	43
Nov 2019	491	24	17
Dec 2019	325	107	41
Jan 2020	429	115	47
Feb 2020	341	52	34
Mar 2020	435	69	42
Apr 2020	841	308	184
May 2020	616	91	55
Jun 2020	423	32	21
Jul 2020	279	15	13
Aug 2020	356	29	13
Sep 2020	449	51	29
Oct 2020	458	46	22
Nov 2020	427	29	20
Dec 2020	381	111	65
Jan 2021	413	46	16
Feb 2021	337	32	20
Mar 2021	502	50	42
Apr 2021	854	309	191
May 2021	392	42	25
Jun 2021	31	8	5
Jul 2021	19	7	3
Aug 2021	19	11	4
Sep 2021	36	18	11
Oct 2021	316	92	69
Nov 2021	336	80	52
Dec 2021	163	9	6
Jan 2022	220	17	3
Feb 2022	276	12	9
Mar 2022	400	53	45
Apr 2022	510	152	101
May 2022	616	47	13
Jun 2022	276	27	9
Jul 2022	174	11	1
Aug 2022	320	52	26
Sep 2022	264	63	31
Oct 2022	510	37	23
Nov 2022	186	8	1
Dec 2022	183	19	9
Jan 2023	232	8	5
Feb 2023	314	13	3
Total	38091	7110	6042

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