Comparisons of median and IQR of continuous vital signs (heart rate, systolic blood pressure, temperature, respiratory rate and oxygen saturation) and distribution of discrete variables (Alert, Voice, Pain, Unresponsive Score and provision of supplemental oxygen) across the development and validation sets. Percentages represent a proportion of total number of observations
| Variable, units | OUH development set | OUH validation set | PH validation set |
| Heart rate, beats/min (IQR) | 81 (70–91) | 81 (70–91) | 80 (68–89) |
| Systolic blood pressure, mm Hg (IQR) | 127 (111–140) | 128 (112–142) | 126 (110–140) |
| Temperature, ℃ (IQR) | 36.4 (36.0–36.8) | 36.5 (36.0–36.8) | 36.7 (36.4–36.9) |
| Respiratory Rate, breaths/min (IQR) | 17 (16–18) | 17 (16–18) | 17 (15–18) |
| Oxygen Saturation, % (IQR) | 96 (95–98) | 96 (95–98) | 96 (95–98) |
| Count of Alert (%) | 2 485 569 (97.9) | 570 793 (98.1) | 5 808 889 (99.0) |
| Count of Voice (%) | 39 871 (1.6) | 9285 (1.6) | 41 693 (0.7) |
| Count of Pain (%) | 6614 (0.3) | 1168 (0.2) | 8498 (0.1) |
| Count of Unresponsive (%) | 6045 (0.2) | 325 (0.1) | 6917 (0.1) |
| Count of provision of supplemental oxygen (%) | 498 672 (19.6) | 93 382 (16.9) | 327 114 (5.6) |