Table 3. Nursing home days during the first year for treatment and control group, by type of experiment.

Type of experiment and demonstration		Data source	Number of days
			Treatment mean	Control mean	Difference	Percent difference
Randomized experiments, all use
Worcester Home Care		Interviews1	46	46	0	0.0
Georgia AHS		Medicaid records1	22	29	−7	−24.1
		Medicare records
South Carolina CLTC		Medicaid records1	90	130	*−40	−30.8
		Medicare records
Florida Pentastar		Interviews1	—	—	—	−10.6
Channeling:		Medicaid records
Basic Model		Medicare records	25	29	−4	−13.8
Financial Model		Provider records	23	26	−3	−11.5
Randomized experiment, Medicaid use only
Wisconsin CCO		Medicaid records1	25	33	−8	−24.2
Randomized experiments, Medicare use only
NCHSR Day Care/Homemaker:
Day care		Medicare records	5	7	−2	−28.6
Homemaker		Medicare records	3	4	−1	−25.0
Combined		Medicare records	4	5	−1	−20.0
OPEN		Medicare records	0.1	0.3	−0.2	−66.7
San Diego LTC		Medicare records	0.5	0.9	−0.4	−44.4
Quasi-experiments, all use
Triage		Interviews Diaries	7	4	3	75.0
On Lok		Interviews Diaries	20	117	*−97	−82.9
MSSP		Medicaid records1	39	45	−6	−13.3
		Medicare records
Quasi-experiment, Medicaid and Medicare use only
Nursing Home Without Walls:
Upstate New York		Medicaid records	6	99	*−93	−93.9
New York City		Medicare records	5	40	*−35	−87.5
Quasi-experiment, Medicare use only
New York City Home Care		Medicare records	0.2	1.1	−0.9	−81.8

^*Denotes statistical significance.

¹All clients were required to be eligible for Medicaid.

NOTE: The full names of all demonstrations are shown in Figure 1.