Understanding how colorectal units achieve short length of stay: an interview survey among representative hospitals in England

Table 2 Unit characteristics

Site code	Long length of stay		Caseload ^*	Number of colorectal consultants ^±	ERP formally introduced	Laparoscopy rates (%)
Site code	Risk-adjusted frequency	95% CI	Caseload ^*	Number of colorectal consultants ^±	ERP formally introduced	Consultant estimate ⁺	HES derived ^¥
1	0.24	0.10-0.46	158	3	2011	50	46
2	0.32	0.10-0.74	68	2.2	2010	70	58
3	0.48	0.23-0.89	91	3	2008	49	47
4	0.50	0.30-0.77	193	5	2006	85	85
5	0.34	0.13-0.69	99	4	2007	80	79
6	0.38	0.15-0.78	91	4	2013	70	77
7	0.38	0.14-0.84	75	4	2008	60	48
8	0.49	0.33-0.71	261	6	N/A	33	31
9	0.42	0.22-0.73	137	3.5	2008	60	59
10	0.47	0.25-0.81	129	3	2011	40	36
Study av.	0.40	-	130	3.8	-	60	57
National av.	0.97	-	118	-	-	-	47

Summary characteristics and Long Length of Stay results of participating units. CI – Confidence Interval; HES – Hospital Episode Statistics; av. - average; ^* - elective colonic surgery between January 2011 and December 2012; ^± - whole time equivalents; ⁺ - between July and August 2013; ^¥ - between January 2011 and March 2012.

ISSN: 1754-9493