Statistical analysis of the data using the unpaired t test
| Procedure | Mean difference | t | df | 2-tailed significance | 95% CI |
|---|---|---|---|---|---|
| CI, confidence interval. | |||||
| Colles fracture manipulation | 0.35 | 0.04 | 27.8 | 0.97 | −19.10 to +18.40 |
| Shoulder manipulation | 18.60 | 2.20 | 27.6 | 0.04 | −35.92 to −1.28 |
| Suturing wounds | 14.51 | 2.34 | 16.2 | 0.03 | −27.44 to −1.58 |
| Exploring wounds | 24.06 | 2.43 | 27.1 | 0.02 | −44.33 to −3.79 |
| Abscess drainage | 11.5 | 0.92 | 27.5 | 0.36 | −37.03 to +14.03 |
| Chest drain insertion | 4.20 | 0.43 | 27.3 | 0.67 | −24.36 to +15.96 |