Time course and pattern of COPD exacerbation onset

Shawn D Aaron; Gavin C Donaldson; George A Whitmore; John R Hurst; Tim Ramsay; Jadwiga A Wedzicha

doi:10.1136/thoraxjnl-2011-200768

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Chronic obstructive pulmonary disease

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Time course and pattern of COPD exacerbation onset

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	Abstract	Full	Pdf
Oct 2011	330	40	105
Nov 2011	244	53	90
Dec 2011	94	31	46
Jan 2012	151	30	45
Feb 2012	958	49	165
Mar 2012	1033	43	165
Apr 2012	403	52	101
May 2012	412	36	77
Jun 2012	269	47	74
Jul 2012	214	28	48
Aug 2012	333	46	71
Sep 2012	181	24	41
Oct 2012	218	41	55
Nov 2012	169	29	47
Dec 2012	151	19	30
Jan 2013	143	24	36
Feb 2013	147	27	37
Mar 2013	135	25	50
Apr 2013	207	30	58
May 2013	113	22	41
Jun 2013	100	25	43
Jul 2013	102	13	27
Aug 2013	74	14	23
Sep 2013	100	18	33
Oct 2013	108	22	33
Nov 2013	120	21	26
Dec 2013	67	6	13
Jan 2014	72	17	30
Feb 2014	108	26	34
Mar 2014	118	24	37
Apr 2014	105	20	28
May 2014	91	18	18
Jun 2014	58	18	20
Jul 2014	36	5	13
Aug 2014	54	18	27
Sep 2014	44	12	18
Oct 2014	57	21	24
Nov 2014	47	15	18
Dec 2014	49	12	31
Jan 2015	31	7	23
Feb 2015	53	14	38
Mar 2015	62	41	72
Apr 2015	55	24	42
May 2015	40	27	49
Jun 2015	36	23	34
Jul 2015	24	26	37
Aug 2015	36	16	39
Sep 2015	26	39	41
Oct 2015	30	20	33
Nov 2015	34	30	53
Dec 2015	41	15	33
Jan 2016	45	29	73
Feb 2016	40	17	50
Mar 2016	46	31	70
Apr 2016	37	23	62
May 2016	44	19	59
Jun 2016	40	26	43
Jul 2016	26	14	43
Aug 2016	40	17	32
Sep 2016	58	20	36
Oct 2016	51	31	46
Nov 2016	49	37	78
Dec 2016	26	33	206
Jan 2017	40	26	102
Feb 2017	10	19	31
Mar 2017	16	37	46
Apr 2017	15	79	37
May 2017	5	101	37
Jun 2017	32	65	37
Jul 2017	55	47	47
Aug 2017	60	45	74
Sep 2017	80	62	66
Oct 2017	95	75	65
Nov 2017	106	88	57
Dec 2017	99	81	48
Jan 2018	123	103	45
Feb 2018	142	121	66
Mar 2018	193	170	84
Apr 2018	171	147	86
May 2018	188	145	80
Jun 2018	143	127	50
Jul 2018	125	107	48
Aug 2018	162	146	60
Sep 2018	201	183	54
Oct 2018	282	256	55
Nov 2018	291	277	59
Dec 2018	209	197	62
Jan 2019	260	244	70
Feb 2019	340	308	61
Mar 2019	328	298	85
Apr 2019	289	261	107
May 2019	279	251	139
Jun 2019	233	199	179
Jul 2019	204	161	203
Aug 2019	175	148	180
Sep 2019	228	192	163
Oct 2019	225	173	146
Nov 2019	225	179	60
Dec 2019	186	163	61
Jan 2020	249	215	72
Feb 2020	223	171	58
Mar 2020	250	184	77
Apr 2020	198	160	90
May 2020	221	156	47
Jun 2020	121	81	42
Jul 2020	150	102	34
Aug 2020	134	94	46
Sep 2020	189	129	33
Oct 2020	223	115	62
Nov 2020	171	113	59
Dec 2020	148	102	30
Jan 2021	213	103	81
Feb 2021	160	106	56
Mar 2021	266	147	75
Apr 2021	178	112	51
May 2021	148	132	47
Jun 2021	87	87	27
Jul 2021	103	103	45
Aug 2021	92	94	33
Sep 2021	150	151	58
Oct 2021	239	165	86
Nov 2021	147	76	53
Dec 2021	192	148	40
Jan 2022	190	127	48
Feb 2022	213	170	42
Mar 2022	257	181	65
Apr 2022	244	167	64
May 2022	215	170	62
Jun 2022	170	122	43
Jul 2022	177	134	21
Aug 2022	211	158	36
Sep 2022	219	160	56
Oct 2022	231	166	68
Nov 2022	236	182	46
Dec 2022	180	154	37
Jan 2023	172	153	36
Feb 2023	225	168	44
Mar 2023	200	166	50
Apr 2023	142	104	32
May 2023	230	174	49
Jun 2023	139	111	25
Jul 2023	145	106	34
Aug 2023	155	122	28
Sep 2023	181	127	30
Oct 2023	289	182	47
Nov 2023	183	133	35
Dec 2023	115	114	28
Jan 2024	48	48	49
Feb 2024	112	90	50
Mar 2024	213	121	115
Total	23544	13737	8562

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