From: Prehospital identification of Covid-19: an observational study
N | Pre-Covid | Assumed negative | Tested negative | Positive |
---|---|---|---|---|
2998 | 5983 | 2313 | 481 | |
Female, % | 52.8 (51.0–54.6) | 51.2 (50.1–52.5) | 50.2 (48.2–52.3) | 47.0 (42.2–51.1) |
Age, median | 70.0 (70.0–71.0) | 65.0 (64.0–66.0) | 77.0 (76.0–77.0) | 73.0 (69.0–74.0) |
High priority dispatch, % | 48.1 (46.3–49.9) | 46.7 (45.4–48.0) | 40.9 (38.9–42.8) | 30.1 (25.8–34.3) |
Abnormal airway, % | 2.9 (2.3–3.5) | 1.9 (1.5–2.3) | 3.7 (3.0–4.5) | 1.3 (0.4–2.4) |
Abnormal breathing, % | 17.0 (15.7–18.4) | 9.6 (8.8–10.3) | 32.4 (30.5–34.4) | 46.7 (42.3–51.2) |
Abnormal circulation, % | 16.8 (15.4–18.1) | 12.6 (11.7–13.4) | 25.3 (23.4–27.0) | 26.0 (21.8–30.2) |
Supplemental oxygen, % | 15.3 (14.0–16.6) | 7.2 (6.5–7.8) | 29.5 (27.5–31.3) | 36.4 (31.8–41.0) |
Medication administration, % | 38.6 (36.9–40.3) | 32.3 (31.1–33.5) | 38.3 (36.4–40.3) | 28.5 (24.7–32.4) |
High priority transport, % | 15.4 (14.2–16.7) | 11.0 (10.2–11.9) | 22.0 (20.0–23.8) | 14.1 (11.0–17.5) |
Total mission duration (minutes), median | 104 (102–105) | 102 (101–103) | 120 (118–122) | 128 (123–132) |
Admitted to hospital, % | 49.3 (47.4–51.1) | 37.6 (36.4–38.8) | 88.6 (87.2–89.9) | 83.4 (80.0–86.7) |
Admitted to Intensive Care Unit, % | 2.0 (1.5–2.6) | 0.6 (0.4–0.8) | 3.9 (3.1–4.7) | 16.2 (12.9–19.5) |
30-day mortality, % | 5.9 (5.1–6.7) | 3.4 (3.0–3.8) | 11.3 (9.9–12.6) | 23.7 (19.8–27.4) |