Table 2.
Ordering Rates by Arm, Clinician Type, and Order Type, 2014
| Clinicians receiving: | |||||||
|---|---|---|---|---|---|---|---|
| Control | Single median price | Paired internal/external median prices | |||||
| All clinicians, N | 407 | 396 | 402 | ||||
| Mean | SD | Mean | SD | Mean | SD | p-value* | |
| Overall | 15.0 | 31.1 | 15.0 | 16.2 | 15.7 | 20.5 | 0.88 |
| Designated to be completed internally | 4.0 | 6.9 | 4.3 | 7.6 | 4.5 | 8.2 | 0.63 |
| Inappropriate | 0.3 | 0.6 | 0.3 | 0.5 | 0.3 | 0.8 | 0.60 |
| Appropriate | 1.9 | 4.7 | 1.8 | 3.6 | 2.0 | 4.1 | 0.82 |
| Primary care, N | 235 | 250 | 243 | ||||
| Mean | SD | Mean | SD | Mean | SD | ||
| Overall | 11.6 | 10.6 | 11.8 | 8.1 | 12.2 | 8.8 | 0.75 |
| Designated to be completed internally | 3.0 | 3.9 | 3.5 | 3.7 | 3.6 | 3.7 | 0.19 |
| Inappropriate | 0.3 | 0.6 | 0.3 | 0.4 | 0.4 | 0.8 | 0.25 |
| Appropriate | 1.1 | 1.9 | 1.2 | 1.9 | 1.4 | 2.2 | 0.40 |
| Specialists, N | 172 | 146 | 159 | ||||
| Mean | SD | Mean | SD | Mean | SD | ||
| Overall | 19.6 | 45.8 | 20.5 | 23.5 | 21.1 | 29.9 | 0.92 |
| Designated to be completed internally | 5.4 | 9.5 | 5.8 | 11.4 | 5.9 | 12.0 | 0.90 |
| Inappropriate | 0.3 | 0.8 | 0.2 | 0.6 | 0.2 | 0.6 | 0.74 |
| Appropriate | 2.8 | 6.8 | 2.9 | 5.3 | 3.0 | 5.8 | 0.98 |
*One-way analysis of variance