Table 3.
Prevalence of latent class memberships of radiologists’ perceptions of CAD and double reading by radiologist characteristics
| Radiologist Characteristic | CAD Perception1 (row %) | Double Reading Perception (row %) | ||||||
|---|---|---|---|---|---|---|---|---|
| Most Favorable | Somewhat favorable | Neutral or somewhat unfavorable | Most Unfavorable | Most Favorable | Somewhat favorable | Neutral or somewhat unfavorable | Most Unfavorable | |
| Total
|
35.8 | 43.3 | 12.0 | 9.0 | 64.5 | 28.2 | 5.1 | 2.3 |
| Demographics
|
||||||||
| Sex | ||||||||
| Male | 42.9 | 39.2 | 9.6 | 8.3 | 60.1 | 31.4 | 6.0 | 2.5 |
| Female | 24.1 | 46.5 | 19.0 | 10.4 | 79.2 | 16.2 | 2.8 | 1.8 |
| Age (yrs). | ||||||||
| <44 | 31.2 | 52.0 | 14.5 | 2.3 | 68.6 | 21.4 | 8.2 | 1.8 |
| 45–54 | 40.4 | 32.5 | 14.3 | 12.8 | 58.2 | 34.1 | 3.6 | 4.1 |
| >=55
|
35.6 | 47.0 | 7.2 | 10.2 | 69.2 | 25.1 | 4.5 | 1.2 |
| Practice Type
|
||||||||
| Primary Affiliation with Academic Medical Center | ||||||||
| No | 35.8 | 43.2 | 10.6 | 10.4 | 59.4 | 32.1 | 6.2 | 2.3 |
| Adjunct | 70.0 | 9.5 | 15.5 | 5.0 | 68.7 | 26.5 | 0.2 | 4.6 |
| Primary
|
16.7 | 53.9 | 24.2 | 5.2 | 98.0 | 1.7 | 0.2 | 0.1 |
| Breast Imaging Experience
|
||||||||
| Fellowship training | ||||||||
| No | 38.1 | 44.1 | 7.7 | 10.1 | 66.0 | 26.0 | 5.6 | 2.4 |
| Yes | 18.3 | 39.5 | 41.7 | 0.5 | 60.9 | 38.8 | 0.2 | 0.1 |
| Years of mammography interpretation | ||||||||
| <10 | 31.5 | 44.5 | 18.9 | 5.1 | 69.6 | 22.8 | 5.6 | 2.0 |
| 10–19 | 46.5 | 33.9 | 8.0 | 11.6 | 60.6 | 32.0 | 4.7 | 2.7 |
| ≥20 | 32.6 | 46.3 | 11.6 | 9.5 | 65.5 | 28.2 | 4.2 | 2.1 |
| Percent of time spent in breast imaging | ||||||||
| <20% | 31.9 | 39.7 | 11.7 | 16.7 | 61.8 | 33.3 | 4.9 | 0.0 |
| 20–39% | 33.7 | 54.2 | 7.0 | 5.1 | 70.5 | 21.6 | 6.3 | 1.6 |
| 40–79% | 45.9 | 28.8 | 16.7 | 8.6 | 62.1 | 29.3 | 2.9 | 5.7 |
| 80–100%
|
33.5 | 41.6 | 17.9 | 7.0 | 65.0 | 25.7 | 5.8 | 3.5 |
| Volume
|
||||||||
| Self-reported average # of mammograms per year over the past 5 years | ||||||||
| <= 1000 | 37.7 | 34.3 | 17.2 | 10.8 | 70.1 | 23.5 | 3.1 | 3.3 |
| 1001–2000 | 39.1 | 43.8 | 8.0 | 9.1 | 73.6 | 16.9 | 8.0 | 1.5 |
| >= 2000 | 37.9 | 40.5 | 13.9 | 7.7 | 65.8 | 28.1 | 3.3 | 2.8 |
| Percent of workload that is screening | ||||||||
| <=10% | 36.3 | 37.7 | 8.8 | 17.2 | 63.8 | 30.9 | 4.2 | 1.1 |
| 11–24% | 40.8 | 39.8 | 14.4 | 5.0 | 67.7 | 24.3 | 3.7 | 4.3 |
| >=25%
|
23.2 | 57.1 | 14.3 | 5.4 | 69.1 | 19.8 | 9.1 | 2.0 |
| Interpretative Practice
|
||||||||
| CAD use for: | ||||||||
| screening - yes | 59.9 | 21.5 | 10.0 | 8.6 | 64.4 | 27.7 | 5.6 | 2.3 |
| screening - no | 12.2 | 71.7 | 13.8 | 2.3 | 64.7 | 31.6 | 3.7 | 0.0 |
| diagnostic - yes | 53.3 | 24.8 | 11.3 | 10.6 | 62.1 | 32.2 | 4.1 | 1.6 |
| diagnostic - no | 24.4 | 59.3 | 9.7 | 6.6 | 64.9 | 27.4 | 5.6 | 2.1 |
| Double reader | ||||||||
| screening - yes | 38.8 | 39.7 | 15.1 | 6.4 | 82.6 | 9.8 | 4.5 | 3.1 |
| screening - no | 42.1 | 37.3 | 6.9 | 13.7 | 63.2 | 29.2 | 5.6 | 2.0 |
| diagnostic - yes | 37.9 | 38.5 | 17.5 | 6.1 | 81.6 | 11.1 | 3.6 | 3.7 |
| diagnostic - no | 38.0 | 42.7 | 8.4 | 10.9 | 65.3 | 27.9 | 4.8 | 2.0 |
Bold items are statistically significant covariates in the latent class model.