Multiple linear regression analysis
| Variable | Increase in intervention time (SE)† | Percentage point increase in intervention time (SE) |
|---|---|---|
| Interruption | ||
| No interruption (reference) | ||
| At least once | 121.36 (21.29)*** | 19.10 (3.97)*** |
| Observer | ||
| 1 (reference) | ||
| 2 | 111.71 (45.92)* | 20.62 (9.48)* |
| 3 | −21.35 (28.32) | 3.77 (5.77) |
| 4 | −5.09 (51.85) | 3.65 (10.59) |
| 5 | 32.41 (29.40) | 10.20 (5.84) |
| Shift | ||
| Day (reference) | ||
| Evening | −22.38 (22.41) | 2.45 (4.62) |
| Night | −12.19 (39.74) | −0.40 (8.21) |
| Location | ||
| Trauma room (reference) | ||
| Triage | 52.19 (65.80) | 30.15 (11.55)** |
| Fast track room | 77.54 (67.61) | 20.78 (13.46) |
| Patient room | 131.17 (55.86)* | 31.01 (10.91)** |
| Psychiatric room | 208.70 (80.51)** | 31.09 (15.83)* |
| Employee type | ||
| Nurse (reference) | ||
| Clinical technician | −87.77 (28.88)** | −14.09 (4.93)** |
| Modifier | ||
| No modifier (reference) | ||
| Combative | 106.07 (92.48) | 18.21 (19.25) |
| Neurologically devastated | 149.13 (69.36)* | 22.06 (14.36) |
| Intoxicated | 13.65 (102.79) | 56.69 (21.20)** |
| Department | ||
| Adult (reference) | ||
| Paediatric | −24.11 (28.33) | −2.96 (5.59) |
| Constant | 674.67 (76.53)*** | −38.60 (11.55)*** |
| R-squared | 0.73 | 0.09 |
| Number of observations | 723 | 723 |
***p<0.001, **p<0.01, *p<0.05.
†Regression also controlled for all intervention types.