Table 4.
Adjusted Negative Binomial Regression of Factors Associated With Medical Care Costs
| Variable | OR | 95% CI | P |
|---|---|---|---|
| Age | .975 | .955–.996 | .019 |
| Male (vs female) | .703 | .505–.979 | .037 |
| White (vs other) | 2.140 | 1.470–3.115 | .000 |
| Black (vs other) | .756 | .443–1.288 | .304 |
| Diagnosis (vs CHF) | |||
| Renal failure | .819 | .497–1.349 | .434 |
| Diabetes | .600 | .351–1.028 | .063 |
| CAD | .569 | .333–.973 | .039 |
| COPD | .996 | .591–1.678 | .988 |
| CVD | .880 | .514–1.505 | .640 |
| No. of chronic conditions | 1.375 | .976–1.937 | .068 |
| Died | 1.575 | .860–2.886 | .141 |
| CHA group (vs usual care) | .904 | .662–1.235 | .527 |
CAD indicates coronary artery disease; CHA, Choices for Healthy Aging; CHF, congestive heart failure; CI, confidence interval; COPD, chronic obstructive pulmonary disease; CVD, cardiovascular disease; OR, odds ratio.
Boldfaced items indicate P <.05.