Appendix Table 1.
Results from multivariate logistic regression modeling the probability of being in the highest quartile of quality for lipid management (two measures) and diabetes.
| Lipid-Lowering Agents | Diabetes Agents | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Covariate | % of patients with diabetes with LDl <100 | % of patients with heart disease with LDL<100 | % of patients with A1c in poor control | ||||||
| OR | 95% CI | P Value | OR | 95% CI | P Value | OR | 95% CI | P Value | |
| Cost/Patient | 1.02 | 0.99-1.04 | .19 | 1.01 | 0.99-1.04 | .27 | 1.00 | 0.98-1.01 | .61 |
| Percent 65+ | 1.04 | 0.97-1.12 | .31 | 1.10 | 1.03-1.18 | .008 | 1.08 | 1.01-1.16 | .04 |
| Number of outpatient visits | 1.00 | 1.00-1.00 | .04 | 1.00 | 1.00-1.00 | .63 | 1.00 | 1.00-1.00 | .41 |
| Percent without insurance | 0.29 | 0.003-33.29 | .62 | 1.53 | 0.03-92.58 | .84 | 0.81 | 0.01-56.72 | .92 |
| High Complexity VAMC | 5.73 | 1.54-21.25 | .009 | 1.22 | 0.38-3.92 | .74 | 0.75 | 0.23-2.39 | .62 |
| Percent on lipid-lowering agents | 1.03 | 0.94-1.13 | .54 | 1.00 | 0.91-1.09 | .93 | |||
| Percent on diabetes agents | 0.99 | 0.86-1.15 | .92 | ||||||
| Percent using Insulin | 1.10 | 0.97-1.24 | .16 | ||||||
Notes: Unit of analysis is the VAMC. High Complexity VAMC is a dichotomous variable to indicate whether or not each VAMC is a high complexity facility. All other variables are used as continuous measures. C statistic is 0.692, 0.679, 0.680 for each of the logistic models (from left to right).