Evidence, hierarchies, and typologies: horses for courses

M Petticrew; H Roberts

doi:10.1136/jech.57.7.527

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Theory and methods

Evidence, hierarchies, and typologies: horses for courses

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Online download statistics by month: June 2003 to September 2024

	Abstract	Full	Pdf
Jun 2003	76	67	57
Jul 2003	63	59	50
Aug 2003	37	38	29
Sep 2003	23	33	16
Oct 2003	29	43	20
Nov 2003	32	54	16
Dec 2003	23	33	13
Jan 2004	44	86	13
Feb 2004	22	28	7
Mar 2004	27	31	23
Apr 2004	28	35	21
May 2004	55	65	24
Jun 2004	77	150	26
Jul 2004	64	70	36
Aug 2004	67	72	35
Sep 2004	48	73	30
Oct 2004	34	78	49
Nov 2004	33	40	34
Dec 2004	26	60	34
Jan 2005	36	62	41
Feb 2005	24	70	27
Mar 2005	29	62	43
Apr 2005	22	55	33
May 2005	20	63	51
Jun 2005	18	34	26
Jul 2005	17	37	30
Aug 2005	19	44	35
Sep 2005	24	44	28
Oct 2005	40	58	36
Nov 2005	40	97	109
Dec 2005	38	45	49
Jan 2006	42	83	70
Feb 2006	29	63	100
Mar 2006	32	53	62
Apr 2006	35	99	65
May 2006	41	148	118
Jun 2006	16	52	43
Jul 2006	27	33	31
Aug 2006	42	78	41
Sep 2006	31	57	45
Oct 2006	53	69	93
Nov 2006	42	70	54
Dec 2006	44	62	48
Jan 2007	58	79	81
Feb 2007	35	67	155
Mar 2007	58	59	62
Apr 2007	75	33	36
May 2007	76	31	34
Jun 2007	54	27	33
Jul 2007	36	31	34
Aug 2007	39	29	30
Sep 2007	60	41	39
Oct 2007	70	25	49
Nov 2007	43	31	37
Dec 2007	43	36	25
Jan 2008	38	34	28
Feb 2008	39	31	36
Mar 2008	52	55	50
Apr 2008	81	58	59
May 2008	54	24	32
Jun 2008	74	24	22
Jul 2008	81	22	43
Aug 2008	68	28	43
Sep 2008	58	27	40
Oct 2008	97	23	47
Nov 2008	97	30	98
Dec 2008	56	23	23
Jan 2009	85	22	30
Feb 2009	67	33	34
Mar 2009	102	27	51
Apr 2009	113	44	61
May 2009	128	59	89
Jun 2009	53	22	34
Jul 2009	66	21	24
Aug 2009	58	35	31
Sep 2009	62	39	24
Oct 2009	91	33	38
Nov 2009	127	68	48
Dec 2009	150	38	68
Jan 2010	119	28	45
Feb 2010	98	40	51
Mar 2010	105	72	59
Apr 2010	97	41	34
May 2010	95	30	26
Jun 2010	72	38	24
Jul 2010	63	20	23
Aug 2010	73	33	32
Sep 2010	96	45	39
Oct 2010	136	47	65
Nov 2010	112	50	25
Dec 2010	100	37	18
Jan 2011	104	61	46
Feb 2011	94	39	31
Mar 2011	102	44	35
Apr 2011	96	22	31
May 2011	88	18	23
Jun 2011	61	11	20
Jul 2011	102	26	47
Aug 2011	71	28	32
Sep 2011	81	21	23
Oct 2011	78	31	30
Nov 2011	103	81	52
Dec 2011	84	62	48
Jan 2012	76	70	59
Feb 2012	77	48	76
Mar 2012	84	93	63
Apr 2012	152	103	79
May 2012	120	87	90
Jun 2012	93	49	53
Jul 2012	92	46	79
Aug 2012	70	56	79
Sep 2012	79	66	65
Oct 2012	137	115	72
Nov 2012	140	95	76
Dec 2012	100	73	51
Jan 2013	149	99	101
Feb 2013	75	87	62
Mar 2013	151	166	109
Apr 2013	163	138	129
May 2013	121	151	114
Jun 2013	54	102	60
Jul 2013	90	89	108
Aug 2013	72	81	79
Sep 2013	111	88	50
Oct 2013	189	240	115
Nov 2013	143	203	80
Dec 2013	116	177	56
Jan 2014	139	316	136
Feb 2014	122	192	103
Mar 2014	145	244	120
Apr 2014	126	263	123
May 2014	135	248	150
Jun 2014	86	171	71
Jul 2014	142	193	132
Aug 2014	160	224	167
Sep 2014	118	187	101
Oct 2014	231	259	123
Nov 2014	186	229	171
Dec 2014	105	124	66
Jan 2015	130	223	86
Feb 2015	101	180	161
Mar 2015	159	212	175
Apr 2015	147	249	140
May 2015	133	246	217
Jun 2015	93	272	80
Jul 2015	110	97	80
Aug 2015	117	117	90
Sep 2015	105	134	74
Oct 2015	118	187	126
Nov 2015	155	162	164
Dec 2015	128	154	104
Jan 2016	138	226	158
Feb 2016	174	135	173
Mar 2016	137	133	161
Apr 2016	173	117	195
May 2016	148	116	194
Jun 2016	97	84	68
Jul 2016	86	85	85
Aug 2016	152	107	191
Sep 2016	161	126	162
Oct 2016	177	182	165
Nov 2016	242	142	303
Dec 2016	174	109	106
Jan 2017	187	111	123
Feb 2017	59	129	187
Mar 2017	56	138	129
Apr 2017	54	223	108
May 2017	40	183	130
Jun 2017	81	134	110
Jul 2017	169	140	87
Aug 2017	256	204	192
Sep 2017	317	245	122
Oct 2017	474	375	146
Nov 2017	441	367	181
Dec 2017	300	223	121
Jan 2018	394	276	138
Feb 2018	455	354	168
Mar 2018	383	323	182
Apr 2018	453	341	172
May 2018	386	285	123
Jun 2018	282	234	112
Jul 2018	234	184	153
Aug 2018	300	240	180
Sep 2018	313	275	110
Oct 2018	693	603	682
Nov 2018	456	364	232
Dec 2018	318	237	145
Jan 2019	376	278	190
Feb 2019	361	274	209
Mar 2019	388	298	340
Apr 2019	354	251	432
May 2019	359	249	500
Jun 2019	272	210	300
Jul 2019	247	196	288
Aug 2019	254	196	171
Sep 2019	266	175	188
Oct 2019	397	295	283
Nov 2019	353	248	271
Dec 2019	415	326	218
Jan 2020	331	246	257
Feb 2020	487	389	235
Mar 2020	386	283	498
Apr 2020	335	266	282
May 2020	319	233	155
Jun 2020	248	200	114
Jul 2020	202	156	90
Aug 2020	222	134	133
Sep 2020	291	198	176
Oct 2020	313	216	216
Nov 2020	299	226	141
Dec 2020	368	280	452
Jan 2021	284	189	158
Feb 2021	293	191	134
Mar 2021	328	213	354
Apr 2021	369	223	202
May 2021	287	227	153
Jun 2021	182	178	95
Jul 2021	193	187	91
Aug 2021	133	131	80
Sep 2021	325	322	309
Oct 2021	324	237	174
Nov 2021	230	148	153
Dec 2021	361	281	392
Jan 2022	417	344	149
Feb 2022	395	306	180
Mar 2022	445	346	192
Apr 2022	452	363	165
May 2022	431	330	148
Jun 2022	351	295	156
Jul 2022	209	166	41
Aug 2022	285	221	78
Sep 2022	339	270	124
Oct 2022	304	257	104
Nov 2022	342	269	146
Dec 2022	241	163	266
Jan 2023	377	264	132
Feb 2023	405	319	123
Mar 2023	286	193	134
Apr 2023	319	263	103
May 2023	321	197	123
Jun 2023	214	145	52
Jul 2023	296	248	66
Aug 2023	247	180	86
Sep 2023	436	371	139
Oct 2023	362	262	119
Nov 2023	491	354	144
Dec 2023	949	119	65
Jan 2024	765	83	37
Feb 2024	1097	47	30
Mar 2024	987	40	35
Apr 2024	994	48	30
May 2024	762	47	34
Jun 2024	665	29	10
Jul 2024	704	34	20
Aug 2024	751	25	23
Sep 2024	1552	32	22
Total	49491	35022	26907

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