Table 3.
Comparison of Average Number of Number of Attempts and Average Time For Successful Intra-Articular Needle Placement by Training Level
| Training Level | Mean number of attempts (±S.D.¥) | Number of successfully placed attempts (N) | p-value |
|---|---|---|---|
| Attending | 1.3 (±0.5) | 10 | |
| Fellow | 1.4 (±0.5) | 10 | |
| Senior | 1.6 (±0.7) | 11 | 0.408 |
| Junior | 1.7 (±0.6) | 11 | |
| Intern | 1.4 (±0.2) | 6 | |
| Total | 1.5 (±0.6) | 48 | |
| Training Level | Mean time to needle placement, seconds (±S.D.¥) | Number of successfully placed attempts (N) | p-value |
| Attending | 10.6 (±4.1) | 10 | |
| Fellow | 8.5 (±3.2) | 10 | |
| Senior | 8.5 (±2.2) | 11 | <0.001 |
| Junior | 14.5 (±2.8) | 11 | |
| Intern | 8.6 (±1.1) | 6 |
¥Standard deviation