Table 2.
Feature importance of time-series ventilator-derived parameters with the mean of different intervals of seconds.
| Ventilatory parameters | Per 1 s | Per 30 s | Per 60 s | Per 120 s | Per 180 s | Per 300 s |
|---|---|---|---|---|---|---|
| FiO2 | 0.108 | 0.127 | 0.133 | 0.140 | 0.144 | 0.128 |
| Ppeak | 0.083 | 0.121 | 0.131 | 0.139 | 0.142 | 0.140 |
| PEEP | 0.043 | 0.076 | 0.088 | 0.099 | 0.105 | 0.113 |
| Pmean | 0.034 | 0.057 | 0.066 | 0.071 | 0.066 | 0.065 |
| RR | 0.022 | 0.025 | 0.026 | 0.027 | 0.027 | 0.031 |
| Vte | 0.018 | 0.024 | 0.024 | 0.025 | 0.025 | 0.027 |
| FiO2_DOD | 0 | 0 | 0.002 | 0.002 | 0.004 | 0.005 |
| Ppeak_DOD | 0 | 0.004 | 0.038 | 0.002 | 0.003 | 0.004 |
| PEEP_DOD | 0 | 0.003 | 0.004 | 0 | 0.006 | 0 |
| Pmean_DOD | 0 | 0.004 | 0.003 | 0 | 0 | 0 |
| RR_DOD | 0.001 | 0.009 | 0.007 | 0.008 | 0.005 | 0.005 |
| Vte_DOD | 0.001 | 0.007 | 0.006 | 0.006 | 0.008 | 0.010 |
DOD, degree of difference; FiO2, fraction of inspiration oxygen; PEEP, positive end-expiratory pressure; Pmean, mean airway pressure; Ppeak, peak airway pressure; RR, respiratory rate; sq, squared; Vte, expiratory tidal volume.