Table 4.
General characteristics of included studies
| ID | Authors | Year | Country | Study type | Population | Outcome portion (%) | Patients type | Mean age (y) | Male (%) | Vital signs |
| A118 | Levin et al | 2017 | USA | Retrospective | 172 726 | 0.40 | All admissions | 46 | 44.7 | TP, HR, RR, SBP, SpO2 |
| A219 | Klug et al | 2020 | Israel | Retrospective | 799 522 | 1.55 | All admissions | 55 | 51.5 | TP, HR, SBP, DBP, SpO2 |
| A321 | Faisal et al | 2020 | UK | Retrospective | 24 696 | 5.33 | All admissions | 63 | 46.9 | RR, SpO2, SBP, PR, GCS, TP |
| A422 | Kwon et al | 2020 | South Korea | Retrospective | 23 587 | 3.98 | Infectious patients | 63 | 46.1 | SBP, RR, TP, HR |
| A529 | Raita et al | 2019 | USA | Retrospective | 135 470 | 2.10 | All admissions | 46 | 56.8 | TP, PR, SBP, DBP, RR, SpO2 |
| A631 | Liu et al | 2011 | Singapore | Retrospective | 100 | 40.00 | All admissions | 65 | 63 | RR, PR, SBP, DBP, SpO2, GCS |
| A732 | Karlsson et al | 2021 | Sweden | Retrospective | 445 | 14.1 | Infectious patients | 73 | 52.6 | HR, SBP, DBP, RR, TP, SpO2 |
| A833 | Chen et al | 2021 | Taiwan | Retrospective | 52 626 | 9.4 | Infectious patients | 72 | 58.3 | HR, SBP, DBP, TP, RR, SpO2, GCS |
| A934 | Joseph et al | 2020 | USA | Retrospective | 445 925 | <13 | All admissions | 53 | 45.9 | HR, SBP, DBP, RR, TP, SpO2 |
| A1035 | Rodriguez et al | 2021 | Columbia | Retrospective/ prospective |
2510 | 11.5 | Infectious patients | 62 | 49.8 | SBP, DBP, TP, RR, SpO2, GCS |
| A1136 | Soffer et al | 2020 | Israel | Retrospective | 118 262 | 5.3 | All admissions | 73 | 52.6 | HR, SBP, DBP, TP, RR, SpO2 |
| A1237 | van Doorn et al | 2021 | Netherlands | Retrospective | 1344 | 13 | Infectious patients | 71 | 54.4 | HR, SBP, DBP, TP, RR, SpO2, GCS |
| A1338 | Taylor et al | 2015 | USA | Retrospective | 5278 | 4.92 | Infectious patients | 65 | 55 | HR, TP, SBP, DBP, RR, SpO2 |
| A1439 | Perng et al | 2019 | Taiwan | Retrospective | 42 220 | 4.71 | Infectious patients | 64 | 56.5 | SBP, GCS, TP, HR |
| A1540 | Shamout et al | 2020 | UK | Retrospective | 37 284 | 0.80 | All admissions | 68 | 48.8 | HR, SBP, RR, TP, SpO2 |
DBP, diastolic blood pressure; GCS, Glasgow coma scale; HR, heart rate; PR, pulse rate; RR, respiratory rate; SBP, systolic blood pressure; SpO2, oxygen saturation; TP, body temperature.