Table 2.
Patient characteristics
| Variable | Derivation n = 16,063 (70%) |
Validation n = 6,882 (30%) |
|---|---|---|
| Location | ||
| Home, n (%) | 11,408 (71) | 4,964 (72) |
| Nursing home, n (%) | 1,028 (6) | 414 (6) |
| Other, n (%) | 3,627 (23) | 1,504 (22) |
| Age (years), mean (SD) | 63 (21) | 62 (21) |
| Gender | ||
| Male, n (%) | 7,884 (49) | 3,346 (49) |
| Respirations (breaths/min), mean (SD) | 20 (6) | 20 (6) |
| Oxygen saturation (%), mean (SD) | 96 (5) | 96 (5) |
| Heart rate (beats/min), mean (SD) | 92 (24) | 92 (24) |
| Systolic blood pressure (mmHg), mean (SD) | 133 (27) | 133 (27) |
| Diastolic blood pressure (mmHg), mean (SD) | 78 (17) | 78 (17) |
| Temperature (°C), mean (SD) | 36.8 (0.9) | 36.8 (0.9) |
| Blood sugar (mmol/L), mean (SD) | 7.0 (3.4) | 7.0 (3.3) |
| Glasgow Coma Score, median (IQR) | 15 (15–15) | 15 (15–15) |
| Capillary bed refill time | ||
| Normal (< 2 s), n (%) | 15,319 (95) | 6,567 (95) |
| Delayed (> 2 s), n (%) | 744 (5) | 315 (5) |
| Skin | ||
| Normal, n (%) | 10,366 (73) | 5,320 (77) |
| Pallor, n (%) | 2,669 (19) | 1,037 (15) |
| Flushed, n (%) | 856 (6) | 359 (5) |
| Cyanosed, n (%) | 181 (1) | 83 (1) |
| Jaundice, n (%) | 92 (0.6) | 51 (0.7) |
| Mottled, n (%) | 53 (0.4) | 20 (0.2) |
| Rash, n (%) | 21 (0.1) | 12 (0.1) |
| Pupil size (mm), median (IQR) | 3 (3–4) | 3 (3–4) |
| Pupil reaction | ||
| Brisk, n (%) | 13,447 (93) | 6,462 (94) |
| Sluggish, n (%) | 923 (6) | 381 (6) |
| Fixed, n (%) | 128 (0.8) | 39 (0.5) |
| NICE risk | ||
| No risk (no infection), n (%) | 13,083 (81.4) | 5,607 (81.5) |
| Infection, n(%) | 2980 (18.6) | 1275 (18.5) |
| Low risk, n (%) | 1,048 (6.5) | 448 (6.5) |
| Moderate risk, n (%) | 1,339 (8.3) | 573 (8.3) |
| High risk, n (%) | 593 (3.7) | 254 (3.7) |