TABLE 2.
Condition number and variance inflation factors for physician characteristics
| Commercial | Medicare advantage | |
|---|---|---|
| Condition number | 11.51 | 4.84 |
| Variance inflation factors | ||
| Female | 1.08 | 1.08 |
| Cardiologist | 1.02 | 1.02 |
| Endocrinologist | 1.03 | 1.01 |
| Other Specialist | 1.02 | 1.02 |
| Physician < 50 | 1.48 | 2.42 |
| Residency < 20 | 2.52 | 2.46 |
| Top 20 US Medical School | 1.05 | 1.07 |
| Non‐US Medical School | 1.10 | 1.12 |
Authors’ analysis of sample of commercially insured and Medicare Advantage patients‐quarters with a diabetes diagnosis and fibrate prescription from 2007 through the third quarter of 2015.