Factors that influence the expected length of operation: results of a prospective study

Brigid M Gillespie; Wendy Chaboyer; Nicole Fairweather

doi:10.1136/bmjqs-2011-000169

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Factors that influence the expected length of operation: results of a prospective study

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	Abstract	Full	Pdf
Oct 2011	176	5	29
Nov 2011	114	6	20
Dec 2011	430	97	98
Jan 2012	600	176	108
Feb 2012	198	26	49
Mar 2012	166	31	39
Apr 2012	472	87	96
May 2012	435	93	79
Jun 2012	385	128	86
Jul 2012	485	145	100
Aug 2012	378	150	102
Sep 2012	412	157	82
Oct 2012	479	181	99
Nov 2012	433	234	74
Dec 2012	311	146	61
Jan 2013	392	148	59
Feb 2013	353	146	65
Mar 2013	448	131	76
Apr 2013	442	152	71
May 2013	396	127	80
Jun 2013	283	97	45
Jul 2013	295	94	49
Aug 2013	363	116	43
Sep 2013	237	59	43
Oct 2013	198	88	34
Nov 2013	159	85	25
Dec 2013	142	83	40
Jan 2014	146	78	31
Feb 2014	147	72	23
Mar 2014	185	82	156
Apr 2014	179	75	33
May 2014	169	72	33
Jun 2014	127	60	21
Jul 2014	114	59	23
Aug 2014	144	44	21
Sep 2014	126	30	17
Oct 2014	138	39	22
Nov 2014	110	41	25
Dec 2014	126	76	34
Jan 2015	117	35	26
Feb 2015	21	12	8
Mar 2015	41	5	13
Apr 2015	32	4	7
May 2015	32	9	6
Jun 2015	19	2	7
Jul 2015	35	10	11
Aug 2015	18	2	6
Sep 2015	41	12	20
Oct 2015	33	23	11
Nov 2015	34	8	8
Dec 2015	41	11	9
Jan 2016	37	12	8
Feb 2016	18	7	2
Mar 2016	13	8	11
Apr 2016	45	7	16
May 2016	21	13	17
Jun 2016	41	9	8
Jul 2016	35	9	11
Aug 2016	49	19	7
Sep 2016	39	12	9
Oct 2016	35	11	10
Nov 2016	39	11	6
Dec 2016	25	16	6
Jan 2017	47	28	4
Feb 2017	9	80	4
Mar 2017	18	32	13
Apr 2017	10	59	7
May 2017	6	43	4
Jun 2017	24	27	4
Jul 2017	40	17	3
Aug 2017	42	15	5
Sep 2017	55	29	5
Oct 2017	36	20	6
Nov 2017	69	20	8
Dec 2017	40	14	6
Jan 2018	38	23	3
Feb 2018	60	30	3
Mar 2018	63	55	5
Apr 2018	59	49	7
May 2018	69	53	6
Jun 2018	74	56	4
Jul 2018	49	31	4
Aug 2018	25	21	3
Sep 2018	26	12	3
Oct 2018	41	27	7
Nov 2018	59	37	9
Dec 2018	50	40	13
Jan 2019	37	26	11
Feb 2019	39	35	18
Mar 2019	52	35	24
Apr 2019	21	18	36
May 2019	33	31	8
Jun 2019	16	14	7
Jul 2019	34	31	16
Aug 2019	29	28	11
Sep 2019	42	38	6
Oct 2019	38	26	12
Nov 2019	35	31	16
Dec 2019	37	33	21
Jan 2020	32	28	2
Feb 2020	23	22	20
Mar 2020	31	23	9
Apr 2020	48	38	10
May 2020	48	42	20
Jun 2020	25	21	9
Jul 2020	27	23	13
Aug 2020	14	9	8
Sep 2020	37	31	4
Oct 2020	54	31	12
Nov 2020	27	25	10
Dec 2020	27	20	10
Jan 2021	41	34	13
Feb 2021	48	35	19
Mar 2021	110	67	14
Apr 2021	80	77	18
May 2021	43	37	9
Jun 2021	31	32	10
Jul 2021	29	25	20
Aug 2021	36	32	10
Sep 2021	50	50	9
Oct 2021	52	46	24
Nov 2021	38	27	22
Dec 2021	60	40	16
Jan 2022	52	30	15
Feb 2022	195	171	16
Mar 2022	76	46	21
Apr 2022	51	51	13
May 2022	65	46	15
Jun 2022	61	42	11
Jul 2022	60	31	9
Aug 2022	67	41	12
Sep 2022	61	42	16
Oct 2022	69	40	15
Nov 2022	48	27	17
Dec 2022	43	27	8
Jan 2023	42	33	12
Feb 2023	64	51	9
Mar 2023	60	46	6
Apr 2023	87	44	20
May 2023	40	28	7
Jun 2023	52	37	4
Jul 2023	48	30	11
Aug 2023	39	27	11
Sep 2023	69	32	11
Oct 2023	103	70	15
Nov 2023	80	63	11
Dec 2023	87	56	23
Jan 2024	70	60	16
Feb 2024	35	29	11
Mar 2024	57	38	113
Total	15968	7200	3515

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