Effects of intensivist coverage in a post-anaesthesia care unit on surgical patients' case mix and characteristics of the intensive care unit

Table 3 Data from the hospital information system

Group	PACU w/o intensivist (n = 24,972)			PACU with intensivist (n = 26,118)
	n	mean	Std. Deviation	n	mean	Std. Deviation	Asymptotic significance (2-tailed)
LOS in PACU (days)	1,554	0.27	0.20	1,763	0.45	0.41	<0.001
LOS in ICU (all types of ICU´s)(days)	3,877	6.04	13.36	3,778	7.12	16.37	<0.001
Pre operative days (all patients)		1.69	4.02		1.56	3.75	<0.001
Pre operative day (PACU-patients)		2.53	4.89		2.34	4.62	<0.001
Pre operative day (ICU-patients)		3.78	6.88		3.56	6.13	0.002
days on normal ward		7.34	9.25		6.65	7.82	<0.001
LOS hospital (days)		8.30	11.80		7.71	10.99	<0.001
CMI (InEK) normal ward		0.659	0.512		0.644	0.492	0.042
CM (InEK) ICU		0.399	2.512		0.424	2.844	<0.001
CM (InEK) other parts of InEK Cost-matrix		0.957	1.269		1.023	1.320	<0.001
CW per hospital day (overall)		0.286	0.234		0.309	0.272	<0.001

PACU w/o intensivist: 1 January 2008 to August 31 2009, PACU with intensivist: 1 September 2009 to 30 April 2011 (20 months prior to PACU and 20 months post PACU).
CMI, case mix index; CW, cost weight; ICU, intensive care unit; InEk, Institute for the Hospital Remuneration System; LOS, length of stay; PACU, post anaesthesia care unit

ISSN: 1364-8535