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Table 2 Covid-19 suspicion and testing rates by primary complaint at dispatch with more than 100 occurrences from April 14 onwards, ordered by descending proportion of confirmed Covid-19 cases

From: Prehospital identification of Covid-19: an observational study

Primary Complaint n Suspicion at dispatch, % Suspicion by ambulance, % Tested at hospital, % Hospital-confirmed a Covid-19, %
Infection 261 68.6 (62.8–74.3) 78.5 (73.9–83.5) 72.8 (67.4–78.2) 29.1 (23.8–34.9)
Fever 147 71.4 (64.6–79.6) 76.9 (70.1–83.7) 74.1 (67.3–81.0) 16.3 (10.9–22.4)
Difficulty Breathing 790 50.9 (47.5–54.3) 65.4 (61.8–68.5) 62.9 (59.9–66.1) 14.7 (12.3–17.1)
General Elderlyb 344 17.2 (13.4–21.5) 29.1 (24.1–33.7) 54.7 (49.1–60.2) 6.4 (3.8–9.0)
General Adultb 139 28.8 (21.6–36.0) 29.5 (22.3–37.4) 38.1 (30.2–46.0) 5.8 (2.2–10.1)
Reduced consciousness 262 12.6 (8.8–16.4) 22.9 (18.3–27.9) 38.9 (33.2–45.0) 4.6 (2.3–7.3)
Fainting 117 12.0 (6.8–17.9) 19.7 (12.8–27.4) 22.2 (14.5–29.9) 3.4 (0.9–6.8)
Stroke 428 5.4 (3.5–7.5) 14.7 (11.4–18.0) 35.3 (30.8–40.2) 3.3 (1.9–5.1)
Seizure 207 4.3 (1.9–7.2) 10.6 (6.8–15.4) 20.3 (15.0–25.6) 2.4 (0.5–4.8)
Other 908 11.3 (9.1–13.4) 15.7 (13.4–18.1) 24.1 (21.3–27.1) 2.2 (1.3–3.2)
Dizziness 144 6.9 (3.5–11.8) 14.6 (9.0–20.8) 17.4 (11.1–23.6) 2.1 (0.0–4.2)
Major trauma 1203 2.8 (1.9–3.8) 8.1 (6.6–9.7) 26.4 (23.9–28.9) 1.8 (1.1–2.7)
Missing 118 0.0 (0.0–0.0) 11.0 (5.9–16.9) 23.7 (16.1–31.4) 1.7 (0.0–4.2)
Abdominal pain 548 8.4 (6.2–10.9) 17.2 (13.9–20.4) 17.9 (14.6–21.2) 1.5 (0.5–2.6)
Chest pain 813 9.5 (7.4–11.4) 17.7 (15.3–20.5) 19.7 (17.1–22.4) 1.2 (0.5–2.1)
Arrythmia 153 3.3 (0.7–6.5) 14.4 (9.2–20.3) 11.8 (6.5–17.0) 0.7 (0.0–2.6)
  1. All data presented with point estimates and bootstrapped 95% Confidence intervals
  2. a Confirmed based on either a positive PCR-test or by hospital diagnosis code
  3. b These categories capture patients with non-specific complaints that cannot be further categorized