Table 3.
Secondary outcomes
| Variables | Continuous control n = 18 |
Routine care n = 18 |
p |
|---|---|---|---|
| Mean P cuff (cmH2O) | 25.9 (25.5, 26.4) | 22.7 (21.6, 24.8) | 0.001 |
| Coefficient of P cuff variation (%) | 4.1 (1.5, 6.1) | 7.7 (4.4, 11.5) | <0.001 |
| P cuff 20–30 cmH2O | |||
| Yes | 18 (100) | 18 (100) | >0.99 |
| % of recording time | 99.1 (97.9, 99.9) | 73.5 (54.4–96.8) | <0.001 |
| P cuff <20 cmH2O | |||
| Yes | 0 (0) | 13 (72) | <0.001 |
| % of recording time | 0.0 (0, 0) | 9.1 (0.0–36.1) | 0.001 |
| P cuff >30 cmH2O | |||
| Yes | 11 (61) | 14 (78) | 0.25 |
| % of recording time | 0.8 (0.1, 2.1) | 2.4 (0.7, 9.4) | <0.001 |
| Pepsin (ng/mL) | 230 (151, 300) | 259 (134, 369) | 0.95 |
| % of tracheal aspirates positive for pepsin | 67 (0, 100) | 71 (0, 100) | 0.83 |
| Alpha amylase (ng/mL) | 1475 (528, 10,333) | 2400 (1342–15,391) | 0.19 |
| % of tracheal aspirates positive for alpha amylase | 40 (0, 100) | 33 (0, 100) | 0.92 |
Data are number of patients (%) or median (interquartile range)
P cuff cuff pressure
Yes indicates that a patient had the variable at least once