Table 5. Cross-validated R²s and predictive ratios of Models 1-7: 1984 and 1985.

Model and year	1984 R2 and cross-validated 1985 R2	Predictive ratio
		65YRF	NOUSE	PRIORHOSP	CVDPROB
	Percent
Model 1
1984	2.9	0.99	0.83	1.22	0.99
1985	− 4.9	1.01	0.83	1.17	0.99
Model 2
1984	6.4	1.00	1.00	1.03	1.00
1985	− 0.3	1.01	1.00	0.99	0.99
Model 3
1984	7.1	1.00	0.87	1.21	0.99
1985	− 3.1	1.00	0.86	1.18	0.99
Model 4
1984	6.4	1.03	0.84	1.30	1.03
1985	− 3.2	1.02	0.86	1.20	1.00
Model 5
1984	9.6	1.03	1.00	1.05	1.03
1985	− 0.9	1.02	1.00	1.01	1.01
Model 6
1984	11.6	1.03	1.00	1.04	1.02
1985	0.6	1.01	1.00	1.00	1.00
Model 7
1984	6.1	1.05	0.84	1.30	1.02
1985	− 3.9	1.03	0.86	1.20	1.00

NOTES: AAPCC is adjusted average per capita cost. The variables are defined in Table 1. Models are defined in Table 2.

SOURCE: The Framingham Study, Boston University; Health Care Financing Administration: Data from the Medicare Automated Data Retrieval System.