Table 1:

Sample Characteristics

	Mean or proportion
	Overall sample (n=13941)	Older (Age 65+) subsample (n=5644)
Age	58.4 (range 17-104, SD 18.7 years)	76.5 (range 65-104 SD 8.1 years)
Male	52.2%	53.6%
Any geriatric consult	2.2%	5.3%
Any palliative care consult	2.8%	3.9%
Prior hospitalization within 30 days	18.2%	17.6%
Unadjusted LOS	5.7 (range 0-154, SD 7.2 days)	5.7 (range 0-85, SD 6.1 days)
Expected LOS*	5.5 (range 2.1-34.5, SD 2.8 days)	5.4 (range 2.1-34.5, SD 2.6 days)
Adjusted LOS**	4.3 (range 0-98, SD 3.9 days)	4.3 (range 0-53, SD 3.6 days)
WRVUs per patient-day	3.6 (range 0-108, SD 4.1 WRVUs per day)	3.3 (range 0-81, SD 3.5 days)
30-day Readmission	18.7%	17.1%

LOS = Length of Stay

DRG = Diagnosis Related Group

^*Expected LOS is the mean expected LOS among hospitalizations with the same DRG

^**Adjusted LOS is the case-mix index adjusted LOS, calculated as unadjusted LOS divided by the case-mix adjustment DRG weight. This weight is greater than 1 for more severe diseases that require more resources on average, less than 1 for diseases that require less than average.

WRVU = Work relative value units