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Table 1 Baseline characteristics of the intention to treat population

From: Point-of-care ultrasound of the heart and lungs in patients with respiratory failure: a pragmatic randomized controlled multicenter trial

  Intervention group (n = 106) Control group (n = 105)
Age (years; median (IQR) 68 (51–79) 69 (62–79)
Sex
 Male 62 (58%) 46 (44%)
 Female 44 (42%) 59 (56%)
Smoking status
 Never smoked 30 (28%) 25 (24%)
 Current smoker 27 (25%) 12 (11%)
 Previous smoker 24 (23%) 37 (35%)
 Unknown status 25 (24%) 31 (30%)
Medical history
 Apoplexy 9 (8%) 7 (7%)
 Coronary artery disease 17 (16%) 16 (15%)
 Heart failure 13 (12%) 14 (13%)
 Arterial hypertension 24 (23%) 22 (21%)
 Thromboembolic disease 11 (10%) 5 (5%)
 Chronic obstructive pulmonary disease 33 (31%) 32 (30%)
 Asthma 6 (6%) 6 (6%)
 Other pulmonary or pleural lung disease 11 (10%) 9 (9%)
 Diabetes mellitus 8 (8%) 17 (16%)
 Chronic kidney disease 8 (8%) 8 (8%)
 Other medical disease 28 (26%) 36 (34%)
 Psychiatric disorder 7 (7%) 4 (4%)
Medication at admission
 Β-blockers 28 (26%) 23 (22%)
 Diuretics 38 (36%) 49 (47%)
 Nitrates 9 (8%) 14 (13%)
 Angiotensin-converting-enzyme inhibitor or angiotensin-receptor blocker 26 (25%) 38 (36%)
 Digoxin 4 (4%) 5 (5%)
 Calcium-channel blockers 16 (15%) 21 (20%)
 Aspirin 16 (15%) 18 (17%)
 Inhaled bronchodilators 39 (37%) 45 (43%)
 Inhaled corticosteroids 21 (20%) 31 (30%)
 Oral corticosteroids 10 (9%) 17 (16%)
 Antibiotics 18 (17%) 17 (16%)
 Anticoagulants 29 (27%) 36 (34%)
 Immunosuppressive medication 5 (5%) 2 (2%)
 Other medication 19 (18%) 24 (23%)
Vital signs at admission mean, (min-max)
 Respiratory rate (breaths per min) 21 (12–44) 22 (12–40)
 Saturation (%) 94 (55–100) 95 (74–100)
-  of these patients n received oxygen supply (l/min) 23 (22%) 29 (28%)
o  1–3 l/min n (%) 15 (65%) 24 (83%)
o  4–6 l/min n (%) 8 (35%) 4 (14%)
o   > 6 l/min n (%) 0 1 (3%)
 Systolic blood pressure (mmHg) 137 (80–224) 137 (94–212)
 Diastolic blood pressure (mmHg) 78 (32–123) 78 (47–111)
 Heart rate (beats per minute) 90 (52–150) 86 (40–144)
 Temperature (°C) 37.1 (35.2–39.5) 37.2 (35.0–39.8)
 Blood glucose 6.8 (4.1–19.9) 6.6 (1.0–22.4)
 Glasgow coma scale scorea 15 (9–15) 15 (14–15)
Patients´ signs and symptoms upon admission
 Cough 33 (31%) 43 (41%)
 Dyspnoea 90 (85%) 85 (81%)
 Chest pain 28 (26%) 28 (27%)
 Respiration rate > 20 breaths per min 33 (30%) 30 (29%)
 Peripheral saturation < 95% 30 (28%) 24 (23%)
 None of the above 0 0
Ultrasound examination already performed in ambulance 0 0
Patients severity score upon admissionb
-  I (Red) 5 (5%) 1 (1%)
-  II (Orange) 29 (27%) 36 (34%)
-   49 (46%) 42 (40%)
-  III (Yellow)
-  IV (Green)
23 (22%) 27 (26%)
  1. Data are number (n), (%), mean (SD) or a median (IQR), unless otherwise indicated
  2. Data are not available for all randomized patients. Missing data are handled by multiple imputation for continuous data and simple imputation when binominary
  3. aWe found GCS 9 in one patient admitted with exacerbation in terminal COPD. Pt was immediately treated with NIV with effect, replied relevant on questions and signed informed consent. The remaining of the included patients had GCS from 14 to 15
  4. bThe severity score is made according to the Danish Emergency Process Triage (DEPT) criteria used for patients with acute illness. The severity score is assessed by measuring the patients´ vital parameters (e.g. BP, HR, GCS). `I (Red)´ is the most severe condition