Overview of study design in clinical epidemiology

J M Stephenson; A  Babiker

doi:10.1136/sti.76.4.244

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Overview of study design in clinical epidemiology

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Online download statistics by month: September 2000 to September 2024

	Abstract	Full	Pdf
Sep 2000	0	5	1
Oct 2000	0	71	30
Nov 2000	0	29	19
Dec 2000	0	24	13
Jan 2001	0	18	16
Feb 2001	0	6	1
Mar 2001	0	6	2
Apr 2001	0	16	5
May 2001	0	9	2
Jun 2001	0	7	0
Jul 2001	0	5	0
Aug 2001	0	6	1
Sep 2001	0	1	4
Oct 2001	0	11	2
Nov 2001	0	9	1
Dec 2001	0	6	2
Jan 2002	0	2	0
Feb 2002	0	7	1
Mar 2002	0	7	1
Apr 2002	0	8	2
May 2002	0	8	3
Jun 2002	0	6	3
Jul 2002	0	5	0
Aug 2002	0	6	4
Sep 2002	0	4	0
Oct 2002	0	4	2
Nov 2002	0	4	3
Dec 2002	0	9	2
Jan 2003	0	3	1
Feb 2003	0	5	1
Mar 2003	0	4	3
Apr 2003	0	6	5
May 2003	0	12	0
Jun 2003	0	9	5
Jul 2003	0	12	1
Aug 2003	0	15	2
Sep 2003	0	11	0
Oct 2003	0	14	1
Nov 2003	0	12	6
Dec 2003	0	11	1
Jan 2004	0	15	6
Feb 2004	0	33	1
Mar 2004	0	16	2
Apr 2004	0	8	3
May 2004	0	33	1
Jun 2004	0	42	0
Jul 2004	0	57	4
Aug 2004	0	58	4
Sep 2004	2	79	16
Oct 2004	36	58	22
Nov 2004	10	18	11
Dec 2004	10	34	19
Jan 2005	7	24	12
Feb 2005	9	31	6
Mar 2005	12	27	9
Apr 2005	12	21	4
May 2005	7	5	9
Jun 2005	16	16	9
Jul 2005	9	18	10
Aug 2005	9	18	17
Sep 2005	3	19	7
Oct 2005	27	21	16
Nov 2005	25	17	10
Dec 2005	4	15	9
Jan 2006	9	19	7
Feb 2006	12	22	12
Mar 2006	42	34	26
Apr 2006	26	28	20
May 2006	50	38	33
Jun 2006	29	22	21
Jul 2006	24	15	13
Aug 2006	21	26	18
Sep 2006	38	61	56
Oct 2006	49	109	95
Nov 2006	33	176	70
Dec 2006	15	132	54
Jan 2007	35	148	84
Feb 2007	44	193	98
Mar 2007	53	185	103
Apr 2007	98	67	45
May 2007	95	81	43
Jun 2007	75	48	32
Jul 2007	74	64	53
Aug 2007	68	42	45
Sep 2007	77	35	46
Oct 2007	109	47	50
Nov 2007	82	40	36
Dec 2007	74	50	36
Jan 2008	102	51	44
Feb 2008	102	41	42
Mar 2008	79	35	43
Apr 2008	87	44	31
May 2008	17	13	7
Jun 2008	31	27	10
Jul 2008	40	15	13
Aug 2008	60	27	22
Sep 2008	83	60	29
Oct 2008	50	24	19
Nov 2008	53	12	8
Dec 2008	31	27	10
Jan 2009	47	72	38
Feb 2009	61	15	16
Mar 2009	79	28	27
Apr 2009	65	45	17
May 2009	73	18	17
Jun 2009	49	21	18
Jul 2009	25	48	20
Aug 2009	7	31	11
Sep 2009	41	16	10
Oct 2009	92	27	16
Nov 2009	100	24	14
Dec 2009	81	17	12
Jan 2010	78	20	35
Feb 2010	55	18	14
Mar 2010	96	31	30
Apr 2010	68	15	13
May 2010	40	12	10
Jun 2010	34	15	15
Jul 2010	28	15	25
Aug 2010	53	18	10
Sep 2010	65	19	10
Oct 2010	90	49	16
Nov 2010	89	41	21
Dec 2010	63	11	13
Jan 2011	92	26	18
Feb 2011	85	20	10
Mar 2011	104	29	13
Apr 2011	74	37	17
May 2011	127	21	13
Jun 2011	109	22	5
Jul 2011	113	17	17
Aug 2011	127	6	0
Sep 2011	141	7	0
Oct 2011	89	22	12
Nov 2011	111	45	3
Dec 2011	87	36	9
Jan 2012	126	53	49
Feb 2012	66	63	18
Mar 2012	75	65	17
Apr 2012	66	71	17
May 2012	92	100	22
Jun 2012	66	110	24
Jul 2012	169	87	44
Aug 2012	93	72	22
Sep 2012	102	91	18
Oct 2012	101	128	119
Nov 2012	0	82	28
Dec 2012	0	63	28
Jan 2013	0	88	44
Feb 2013	0	61	18
Mar 2013	0	65	17
Apr 2013	0	70	26
May 2013	0	78	34
Jun 2013	59	75	19
Jul 2013	146	44	30
Aug 2013	77	47	14
Sep 2013	69	76	23
Oct 2013	65	103	44
Nov 2013	63	77	26
Dec 2013	41	56	26
Jan 2014	84	55	48
Feb 2014	26	63	14
Mar 2014	43	113	33
Apr 2014	37	106	22
May 2014	37	87	14
Jun 2014	67	67	35
Jul 2014	25	31	24
Aug 2014	41	74	7
Sep 2014	40	92	31
Oct 2014	24	63	14
Nov 2014	26	51	11
Dec 2014	23	57	6
Jan 2015	52	77	10
Feb 2015	28	53	9
Mar 2015	19	39	10
Apr 2015	15	46	7
May 2015	25	66	10
Jun 2015	12	53	8
Jul 2015	9	49	11
Aug 2015	13	37	6
Sep 2015	19	54	11
Oct 2015	10	55	6
Nov 2015	15	76	4
Dec 2015	10	59	8
Jan 2016	25	103	16
Feb 2016	11	65	10
Mar 2016	11	55	11
Apr 2016	11	47	7
May 2016	8	49	9
Jun 2016	4	45	8
Jul 2016	17	61	22
Aug 2016	4	45	8
Sep 2016	17	63	25
Oct 2016	10	75	17
Nov 2016	10	64	18
Dec 2016	18	67	10
Jan 2017	23	78	25
Feb 2017	13	51	15
Mar 2017	2	59	11
Apr 2017	0	64	7
May 2017	3	75	14
Jun 2017	18	84	18
Jul 2017	37	35	16
Aug 2017	25	25	8
Sep 2017	60	58	15
Oct 2017	132	113	37
Nov 2017	77	75	11
Dec 2017	49	47	12
Jan 2018	57	53	17
Feb 2018	79	73	11
Mar 2018	107	108	8
Apr 2018	140	139	12
May 2018	168	168	20
Jun 2018	100	100	7
Jul 2018	125	125	18
Aug 2018	204	202	30
Sep 2018	265	265	53
Oct 2018	256	250	60
Nov 2018	295	293	52
Dec 2018	289	279	31
Jan 2019	241	239	17
Feb 2019	231	227	25
Mar 2019	224	221	23
Apr 2019	346	346	38
May 2019	279	277	27
Jun 2019	226	226	25
Jul 2019	261	258	27
Aug 2019	223	218	42
Sep 2019	315	316	36
Oct 2019	466	462	65
Nov 2019	452	441	57
Dec 2019	411	397	34
Jan 2020	358	350	40
Feb 2020	370	366	45
Mar 2020	348	330	75
Apr 2020	179	169	12
May 2020	104	88	42
Jun 2020	95	87	14
Jul 2020	166	157	19
Aug 2020	121	112	14
Sep 2020	195	185	30
Oct 2020	269	256	51
Nov 2020	262	252	42
Dec 2020	282	270	29
Jan 2021	295	269	52
Feb 2021	343	343	33
Mar 2021	378	356	90
Apr 2021	245	232	57
May 2021	265	245	67
Jun 2021	227	231	53
Jul 2021	269	273	38
Aug 2021	270	273	57
Sep 2021	322	324	50
Oct 2021	526	399	91
Nov 2021	413	414	92
Dec 2021	478	471	83
Jan 2022	354	350	52
Feb 2022	386	402	72
Mar 2022	471	491	105
Apr 2022	509	528	72
May 2022	512	540	76
Jun 2022	379	385	81
Jul 2022	417	423	62
Aug 2022	507	517	68
Sep 2022	769	785	79
Oct 2022	969	974	97
Nov 2022	1087	1084	73
Dec 2022	567	555	78
Jan 2023	611	605	71
Feb 2023	721	718	58
Mar 2023	912	919	94
Apr 2023	462	447	83
May 2023	461	461	69
Jun 2023	517	527	59
Jul 2023	407	421	63
Aug 2023	433	435	74
Sep 2023	523	512	81
Oct 2023	1280	1292	132
Nov 2023	755	697	85
Dec 2023	1022	144	36
Jan 2024	265	39	7
Feb 2024	315	9	2
Mar 2024	583	27	6
Apr 2024	488	16	12
May 2024	469	7	5
Jun 2024	334	15	7
Jul 2024	270	11	4
Aug 2024	555	8	9
Sep 2024	373	40	5
Total	38887	35438	7496

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