Distribution of physician and practice characteristics, stratified by combinations of primary certificate status and neuroradiology subspecialty certification statusa
| Lifetime Primary; Currently Subspecialty Certified | Lifetime Primary; Previously Subspecialty Certified | Lifetime Primary; Never Subspecialty Certified | Time-Limited Primary; Currently Subspecialty Certified | Time-Limited Primary; Never Subspecialty Certified | |
|---|---|---|---|---|---|
| No. | 1184 | 593 | 418 | 1984 | 483 |
| Mean neuroradiology work effort | 70.5% | 52.4% | 73.2% | 68.1% | 71.8% |
| Academic practice status | |||||
| Academic | 29.2% | 14.0% | 10.0% | 30.5% | 19.3% |
| Nonacademic | 70.8% | 86.0% | 90.0% | 69.5% | 80.7% |
| Group practice size | |||||
| <10 | 14.0% | 27.7% | 25.8% | 7.0% | 14.3% |
| 10–49 | 31.9% | 36.8% | 33.3% | 32.0% | 26.9% |
| 50–99 | 13.5% | 9.9% | 14.4% | 15.0% | 13.3% |
| ≥100 | 40.5% | 25.6% | 26.6% | 46.1% | 45.5% |
| Region | |||||
| Midwest | 22.3% | 17.7% | 17.0% | 22.8% | 19.9% |
| Northeast | 25.3% | 21.6% | 21.8% | 23.3% | 18.0% |
| South | 34.1% | 37.9% | 31.6% | 29.5% | 30.4% |
| West | 18.3% | 22.8% | 29.7% | 24.4% | 31.7% |
| Years in practice | |||||
| ≤10 | 0.0% | 0.0% | 0.0% | 11.7% | 18.7% |
| 11–20 | 0.1% | 0.8% | 0.0% | 67.3% | 58.8% |
| 21–30 | 43.3% | 24.1% | 41.8% | 16.8% | 19.8% |
| 31–40 | 46.5% | 53.9% | 41.8% | 4.1% | 2.4% |
| 41–50 | 9.1% | 17.6% | 13.5% | 0.2% | 0.2% |
| ≥51 | 1.1% | 3.7% | 3.0% | 0.0% | 0.0% |
↵a Cells in columns for given characteristic add up to 100%. Columns 1 and 4 in this table together reflect column 1 in Table 2; columns 3 and 5 in this table together reflect column 3 in Table 2. Column 2 in this table is a subset of column 2 in Table 2.