Table 3:
Multivariable Analysis by Radiology Division
| Predictor | Abdomen | Chest | Cancer Institute | |||
|---|---|---|---|---|---|---|
| Odds Ratio (95% CI) |
P-value | Odds Ratio (95% CI) |
P-value | Odds Ratio (95% CI) |
P-value | |
| Patient Age, Years | 1.01 (1.00–1.01) | <0.01* | 1.01 (1.00–1.01) | <0.01* | 1.01 (1.00–1.01) | <0.01* |
| Patient Sex, Women | Reference | Reference | Reference | |||
| Patient Sex, Men | 0.9 (0.9–1.0) | 0.02* | 0.8 (0.8–0.9) | <0.01* | 1.0 (0.9–1.0) | 0.09 |
| Radiologist Sex, Women | Reference | Reference | Reference | |||
| Radiologist Sex, Men | 1.3 (0.8–2.3) | 0.30 | 1.1 (0.4–2.7) | 0.87 | 0.5 (0.4–0.8) | <0.01* |
| Trainee, Absent | Reference | Reference | Reference | |||
| Trainee, Present | 0.9 (0.9–1.0) | 0.06 | 1.4 (1.3–1.4) | <0.01* | 1.1 (1.0–1.2) | 0.13 |
| Unique Attending ID | 0.01* | 0.06 | 0.02* | |||
| Years in Practice | ||||||
| 1–10 | Reference | <0.5 | Reference | 0.99 | Reference | 0.21 |
| 11+ | 0.8 (0.5–1.4) | 1.0 (0.3–3.9) | 1.6 (0.8–3.5) | |||
| Modality | ||||||
| X-Ray | Reference | Reference | Reference | |||
| MR | 4.2 (3.7–4.8) | 5.3 (3.2–8.5) | 0.7 (0.6–0.8) | |||
| CT | 4.9 (4.4–5.6) | <0.01* | 14.5 (13.4–15.7) | <0.01* | 0.8 (0.7–0.9) | <0.01* |
| Ultrasound | 3.3 (2.7–4.0) | 0.9 (0.7–1.0) | ||||
| Care Setting | ||||||
| Outpatient | Reference | <0.01* | Reference | Reference | ||
| Inpatient | 0.8 (0.74–0.9) | 1.61 (1.5–1.74) | <0.01* | 1.61 (0.73–3.52) | 0.24 | |
| Predictor | Emergency Radiology | Musculoskeletal | Neuroradiology | |||
| Odds Ratio (95% CI) |
P-value | Odds Ratio (95% CI) |
P-value | Odds Ratio (95% CI) |
P-value | |
| Patient Age, Years | 1.01 (1.00–1.01) | <0.01* | 1.00 (0.99–1.00) | <0.01* | 1.01 (1.00–1.01) | <0.01* |
| Patient Sex, Women Sex | Reference | Reference | Reference | |||
| Patient Sex, Men Sex | 1.0 (1.0–1.0) | 0.81 | 0.9 (0.9–1.0) | <0.01* | 1.0 (0.9–1.1) | 0.63 |
| Radiologist Sex, Women Sex | Reference | Reference | Reference | |||
| Radiologist Sex, Men Sex | 0.59 (0.3–1.2) | 0.15 | 1.2 (0.5–3.2) | 0.71 | 1.9 (0.4–8.6) | 0.43 |
| Trainee, Absent | Reference | Reference | Reference | |||
| Trainee, Present | 1.03 (1.0–1.1) | 0.31 | 0.8 (0.7–0.9) | <0.01* | 1.3 (1.2–1.3) | <0.01* |
| Unique Attending ID | 0.02* | 0.03* | <0.01* | |||
| Years in Practice | ||||||
| 1–10 | Reference | 0.14 | Reference | 0.93 | Reference | 0.66 |
| 11+ | 0.6 (0.3–1.2) | 1.0 (0.4–2.6) | 1.3 (0.4–4.1) | |||
| Modality | ||||||
| X-Ray | Reference | Reference | Reference | |||
| MR | 1.9 (1.6–2.3) | 2.1 (1.9–2.3) | 1.8 (1.4–2.3) | |||
| CT | 3.7 (3.5–3.8) | <0.01* | 2.5 (2.2–2.8) | <0.01* | 1.4 (1.1–1.9) | <0.01* |
| Ultrasound | 0.5 (0.4–0.5) | 1.0 (0.6–1.7) | ||||
| Care Setting | ||||||
| Outpatient | Reference | Reference | ||||
| Inpatient | 0.4 (0.4–0.5) | <0.01* | 0.7 (0.7–0.7) | <0.01* | ||
*
Statistically Significant; CI=Confidence Interval