Outcome | Before n=412 | After n=412 | P value |
Leak (%), median (IQR), overall | 31 (10–69) | 10 (6–18) | <0.0001 |
Leak (%), median (IQR), by professional group | |||
Midwife* | 39 (12–72) | 10 (7–17) | |
Nurse† | 34 (10–73) | 10 (5–17) | |
Doctor‡ | 19 (9–65) | 10 (6–17) | |
Student/other§ | 29 (10–65) | 14 (9–24) | |
Expiratory Vt (mL), mean (SD), overall | 15.3 (5.7) | 19.0 (2.6) | <0.0001 |
Expiratory Vt (mL), mean (SD), by professional group | |||
Midwife* | 15.1 (5.9) | 19.2 (2.4) | |
Nurse† | 14.6 (6.1) | 19.0 (3.1) | |
Doctor‡ | 16.1 (5.1) | 18.8 (2.5) | |
Student/other§ | 15.0 (6.1) | 18.6 (2.3) | |
PIP (cmH20), mean (SD) | 18.7 (1.7) | 19.3 (0.7) | <0.0001 |
PEEP (cmH20), mean (SD) | 4.3 (0.8) | 4.8 (0.6) | <0.0001 |
Ventilation rate (inflations/min), mean (SD) | 39 (11) | 45 (6) | <0.0001 |
*n=128.
†n=104.
‡n=134.
§n=46.
PEEP, positive end-expiratory pressure; PIP, peak inspiratory pressure; Vt, tidal volume.