Table 1 Demographics and characteristics of patients
Variables | Entire dataset | Training set | Test set | P-value |
|---|---|---|---|---|
(n = 1,546) | (n = 1,079) | (n = 466) | ||
Age, months | 16 (12−19.5) | 16 (12−18) | 16 (12−20) | 0.880 |
Female | 1,145 (74.1) | 799 (74.1) | 345 (74.0) | 0.995 |
Percentile of systolic BP | 0.5 (0.1−0.9) | 0.5 (0.1−0.9) | 0.5 (0.2−0.9) | 0.650 |
Percentile of diastolic BP | 0.8 (0.5−1.0) | 0.8 (0.6−1.0) | 0.8 (0.5−1.0) | 0.490 |
Pulse pressure, mmHg | 33 (26−42) | 33 (26−41) | 34 (26−43) | 0.144 |
Respiratory rate, breaths/minute | 25 (17−32) | 25 (17−32) | 25 (17−32) | 0.635 |
Heart rate, beats/minute | 110 (97−129) | 110 (96−129) | 110 (97−129) | 0.725 |
EtCO2, mmHg | 43 (35−54) | 42 (34−54) | 43 (35−54) | 0.645 |
SpO2, % | 96 (90−100) | 96 (90−100) | 96 (90−100) | 0.989 |
Minute ventilation, L/minute | 1.4 (1.0−2.2) | 1.4 (1.0−2.2) | 1.4 (1.0−2.2) | 0.899 |
FiO2, % | 50 (36.3−69.2) | 50.1 (38.3−69.3) | 49.4 (34.8−69.1) | 0.409 |
MAP, cmH2O | 14.1 (11.5−16.9) | 14.0 (11.6−16.9) | 14.2 (11.5−16.7) | 0.752 |
PIP, cmH2O | 26.8 (21.8−32.6) | 26.7 (21.8−32.7) | 27.0 (21.8−32.5) | 0.992 |
PEEP, cmH2O | 10 (8−12) | 10 (8−12) | 10 (8−12) | 0.808 |
PaCO2, mmHg | 63 (50−83) | 63 (50−83) | 63 (50−83) | 0.889 |
PaO2/FiO2, mmHg | 119.4 (82.6−202.2) | 118.6 (82.4−198.8) | 120.2 (83.1−217.4) | 0.586 |
(PaCO2 - EtCO2), mmHg | 19 (12−31) | 19 (12−31) | 20 (12−30) | 0.678 |
Oxygenation saturation index | 7.2 (4.4−11.8) | 7.2 (4.5−11.8) | 7.1 (4.2−11.5) | 0.488 |