Table 3 Summary of derivation and validation datasets.
Derivation dataset | Validation dataset | |
|---|---|---|
Final # of patients | 1883 | 286 |
Final # of BG samples | 12,344 | 4030 |
Age, mo, mean ± STD | 50 ± 73 | 40 ± 62 |
CTICU | 60% of patients | 57% of patients |
PICU* | 41% of patients† | 43% of patients |
Metabolic acidosis‡ | 14% | 10% |
Respiratory acidosis‡ | 28% | 22% |
Metabolic alkalosis‡ | 7% | 17% |
Respiratory alkalosis‡ | 6% | 10% |
Mixed‡ | 44% | 41% |
PARDS‡ | 12% | 9% |
Before resampling | 11% pH < 7.3 | 7% pH ≤ 7.3 |
71% 7.3 ≤ pH < 7.45 | 71% 7.3 ≤ pH < 7.45 | |
18% pH ≥ 7.45 | 22% pH ≥ 7.45 | |
Post resampling and processing | 17% pH < 7.3 | NA§ |
54% 7.3 ≤ pH < 7.45 | ||
29% pH ≥ 7.45 | ||
Blood gas type | 90% arterial | |
10% capillary | ||
