Table 1.

Studies

Study	Participants and Setting	Design	Sample size derivation cohort	Validation type and sample size	Mean age of derivation cohort	Most common admitting diagnoses	Prognostic data collection timeframea	Outcome
Fairchild et al., 1998 [15]	General medicine patients in an urban teaching hospital	Single center prospective cohort	387	Internal, n = 327	55	Chest pain	< 24 h	Use of post-discharge medical services
						Heart failure and shock
						Bronchitis and asthma with complications
Simonet et al., 2008 [20]	General medicine patients in a teaching hospital	Single center prospective cohort	349	Internal, n = 161	65	Not provided	< 24 h	Discharge to a post-acute care facility
Mehta et al., 2011 [16]	General medicine patients in a teaching hospital	Multicenter prospective cohort	885	External, n = 753	78	Chronic lung disease	< 24 h	Need for ADL support
						Peripheral vascular disease
						Congestive heart failure
Stineman et al., 2014 [18]	Veterans hospitals stroke patients	Multicenter retrospective cohort	3909	Internal, n = 2606	69	Stroke	Throughout hospitalization	Home discharge
Tapper et al., 2015 [19]	Liver transplant unit in an academic hospital	Single center retrospective cohort	490	Internal, n = 244	57	Encephalopathy	< 24 h	Discharge to rehabilitation
						Ascites
						Gastrointestinal bleeding
Basic et al., 2015 [17]	Patients admitted under geriatricians with geriatric issues	Single Center Prospective Cohort	1055	Internal n = 1070	83	Dementia	During the Hospitalization	New Admission to a Nursing Home
						Delirium
						Deconditioning

^aRelative to time of admission