Outcome variables in patients treated
| T1 | T2 | |||||
|---|---|---|---|---|---|---|
| Mask | Helmet | p-value | Mask | Helmet | p-value | |
| Subjects n | 41 | 39 | 41 | 39 | ||
| Dyspnoea score | 4.34±2.15 | 5.0±2.28 | 0.0988 | 3.32±2.01 | 4.30±2.07 | 0.0227* |
| Respiratory rate breaths per min | 26.42±6.51 | 25.16±7.21 | 0.2500 | 22.72±5.05 | 21.89±5.88 | 0.4409 |
| Systolic blood pressure mmHg | 130.11±23.95 | 128.68±25.21 | 0.8535 | 125.06±17.74 | 129.47±21.84 | 0.4461 |
| Diastolic blood pressure mmHg | 68.81±12.63 | 70.28±14.53 | 0.7321 | 66.0±12.10 | 70.66±12.71 | 0.0839 |
| PS cmH2O | 16.37±4.19 | 19.62±5.67 | 0.0205* | 15.95±4.22 | 19.42±5.9 | 0.0114* |
| PEEP cmH2O | 4.26±1.92 | 7.72±1.85 | 0.0313* | 4.26±1.92 | 7.53±1.83 | 0.0411* |