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. 1992 Fall;14(1):79–90.

Table 4. Summary of regressions on logged weighted Medicare payments: 1985.

Variable Model 1 Model 2 Model 3 Model 4 Model 5 Model 6 Model 7
Coefficient
Age 10.1655 10.1465 10.1084 0.0467 0.0261 0.0240 —
Sex −0.0466 −0.0306 −0.0363 0.0208 0.0506 0.0589 —
Institutional status −0.0166 −0.0414 −0.0534 0.0533 0.0521 0.0567 —
Prior hospitalization — 10.2021 — — 10.1614 10.1365 —
Prior physician visit — 10.0857 — — 10.1074 10.1319 —
Disability — — 10.1788 — — 10.1424 —
Dichotomous systolic BP — — — 0.0246 0.0546 30.0810 0.0207
Systolic BP treatment level — — — −0.0757 −20.1098 −20.1152 −0.0756
Forced vital capacity — — — −0.0701 −0.0643 −0.0647 −10.0992
Serum cholesterol — — — −20.0848 −20.0832 −10.0977 20.0831
Blood sugar — — — 0.0549 0.0355 0.0319 0.0526
2-year CVD probability — — — 10.1684 10.1755 10.1514 30.1833
Cigarettes per day — — — 0.0219 0.0520 0.0862 0.0454
Pack years — — — 0.0637 0.0737 20.0848 0.0500
Sex X cigarettes per day — — — −30.1929 −20.2342 −20.2750 −0.1786
Age X cigarettes per day — — — 0.0380 0.0075 0.0122 0.0490
R2 (percent) 2.8 8.1 5.2 8.1 12.5 14.8 7.7
Adjusted R2 (percent) 2.5 7.7 4.8 6.6 10.8 13.0 6.5
Degrees of freedom 1,053 1,019 982 829 804 760 830
F value 9.99 17.95 13.45 3.93 7.49 8.07 6.80
Prob>f 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001
1

The p-value for the standardized beta coefficient is <0.01.

2

The p-value for the standardized beta coefficient is <0.05.

3

The p-value for the standardized beta coefficient is <0.10.

NOTES: BP is blood pressure. CVD is cardiovascular disease.

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

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