Table 2. Three Versions of the SERP Derived From the Primary Outcomes.
| Variable | SERP scores | ||
|---|---|---|---|
| SERP-2d | SERP-7d | SERP-30d | |
| Age, y | |||
| <30 | 0 | 0 | 0 |
| 30-49 | 9 | 10 | 8 |
| 50-79 | 13 | 17 | 14 |
| ≥80 | 17 | 21 | 19 |
| Heart rate, /min | |||
| <60 | 3 | 2 | 1 |
| 60-69 | 0 | 0 | 0 |
| 70-94 | 3 | 4 | 2 |
| 95-109 | 6 | 8 | 6 |
| ≥110 | 10 | 12 | 9 |
| Respiration rate, /min | |||
| <16 | 11 | 10 | 8 |
| 16-19 | 0 | 0 | 0 |
| ≥20 | 7 | 6 | 6 |
| Blood pressure, mm Hg | |||
| Systolic | |||
| <100 | 10 | 12 | 8 |
| 100-114 | 4 | 6 | 5 |
| 115-149 | 1 | 1 | 2 |
| ≥150 | 0 | 0 | 0 |
| Diastolic | |||
| <50 | 5 | 4 | 3 |
| 50-94 | 0 | 0 | 0 |
| ≥95 | 1 | 2 | 2 |
| Spo2, % | |||
| <90 | 7 | NA | NA |
| 90-94 | 5 | NA | NA |
| ≥95 | 0 | NA | NA |
| Cancer history | |||
| None | NA | NA | 0 |
| Local tumor, leukemia, and lymphoma | NA | NA | 6 |
| Metastatic solid tumor | NA | NA | 14 |
Abbreviations: NA, not applicable; SERP, Score for Emergency Risk Prediction; Spo2, oxygen saturation as measured by pulse oximetry.