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Table 1 Characteristics of the 551 ambulance patients with suspected infectiona

From: The predictive value of variables measurable in the ambulance and the development of the Predict Sepsis screening tools: a prospective cohort study

VariableNumberb(%b)
N = 551
Median (IQR)
Age (yr) 78 (71–85)
Gender
 -male331/551 (60.1) 
Ambulance parameters
Prio 2 (2–2)
 1100/545 (18.3) 
 2384/545 (70.5) 
 361/545 (11.2) 
Prevalence of keywords related to medical historyc
 1. Fever or suspected fever403/551 (73.1) 
 2. Pain256/550 (46.5) 
 3. Acute altered mental status328/551 (59.5) 
 4. Weakness of the legs (difficulties to walk/stand/raise/fallen/found on the floor or similar)419/551 (76.0) 
 5. Breathing difficulties280/549 (51.0) 
 6. Loss of energy490/551 (88.9) 
 7. Gastrointestinal symptoms (vomiting/diarrhoea)188/550 (34.2) 
 8. Risk factors for sepsisd229/549 (41.7) 
Vital signs
 1. Respiratory rate (min−1) 22 (18–28)
 2. Oxygen saturation (%) 94 (91–97)
 3. Heart rate (min−1) 94 (80–108)
 4. Systolic blood pressure (mmHg) 135 (120–150)
 5. GCS (score) 15 (15–15)
 6. Temperature (°C) 38.3 (37.5–39.1)
POC-tests
 1. P-Glucose (mmol/L) 7.9 (6.8–9.7)
 2. P-Lactate (mmol/L) 1.7 (1.3–2.6)
 3. P-suPAR (ng/mL) 4.8 (3.5–6.7)
 4. P-HBP (ng/mL) 12.9 (5.9–28.4)
Comorbidity
 Charlson comorbidity score 2 (1–4)
Admitted to in-hospital care454/551 (82.4) 
Outcome
 1. Sepsis230/551 (41.7) 
 2. No sepsis321/551 (58.3) 
  -Infection no sepsis277/551 (50.3) 
  -No infection44/551 (8.0) 
ICD-code upon hospital discharge
 ICD-code sepsis54/549 (9.8) 
 ICD-code infection358/549 (65.2) 
In-hospital mortality33/551 (6.0) 
  1. IQR Interquartile range, GCS Glasgow Coma Scale, POC Point Of Care, suPAR soluble urokinase Plasminogen Activating Receptor, HBP Heparin Binding Protein, ED Emergency Department, qSOFA quick SOFA (Sequential Organ Failure Assessment score), ICD International Statistical Classification of Diseases and Related Health Problems
  2. a551 adult ambulance patients with infection according to clinical judgment by ambulance personnel and documentation to determine if the patient had outcome sepsis according to Sepsis-3 or not
  3. bOf patients with documented variable
  4. cAll symptoms were new-onset or increased compared to the patient’s habitual state
  5. dsuch as infection/antibiotic treatment/chemotherapy/ surgical or urological procedure/new blood−/urinary catheters last weeks or alcohol/drug abuse