Table 1.

Percentage of hospital days that could have been saved

	% hospital days (clinical and day care) to gain by substitution to day care	% hospital days (clinical and day care) to gain by reduction length of stay to 15th percentile hospital	% hospital days (clinical and day care) to gain by substitution to day care AND reduction length of stay to 15th percentile hospital	Extrapolation to all Dutch hospitals: number of hospital days to gain
Internal medicine	0.3%	11.1%	11.4%	248231
Cardiology	1.2%	16.5%	17.7%	243766
Pulmonology	0.2%	12.9%	13.1%	114951
Rheumatology	0.1%	17.3%	17.4%	14357
Gastroenterology	1.4%	11.5%	12.9%	51784
General Surgery	2.5%	9.1%	11.6%	243697
Urology	4.7%	9.8%	14.5%	60074
Orthopaedic surgery	2.6%	10.7%	13.3%	127051
Cardiothoracic Surgery	0.0%	22.2%	22.2%	34833
Neurosurgery	0.4%	26.9%	27.3%	48463
Oral Surgery	3.2%	15.8%	18.9%	8712
Plastic surgery	4.1%	14.1%	18.2%	28022
Obstetrics and gynaecology	0.5%	11.5%	12.0%	126912
Paediatrics	0.2%	11.4%	11.6%	100307
Psychiatry	0.0%	19.1%	19.1%	84182
Neurology	0.1%	11.8%	11.9%	106441
Otolaryngology (ENT)	13.2%	10.5%	23.7%	72756
Ophthalmology	5.5%	13.9%	19.4%	37975
Geriatrics and other specialties	0.2%	38.7%	38.9%	71924
TOTAL	1.4%	12.9%	14.3%	1824441