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Table 1 Patients’ characteristics at inclusion, during intensive care unit stay and main outcomes

From: Duration of prone position sessions: a prospective cohort study

Patients’ variablesValues
Inclusion
 N103
 Age (years)60 ± 13 (58–63)
 Male gender (n)73 (70.9%)
 BMI (kg/m2)29 ± 7 (28–31)
 SAPS254 ± 17 (51–57)
 SOFA9 ± 4 (9–10)
 ARDS (n)98 (95%)
 ARDS due to pneumonia (n)96 (93.2%)
ICU stay
 Prone position sessions (n)231
 Prone position sessions (n per patient)2.2 ± 1.8 (1.9–2.6)
 Prone position sessions (hours)21.5 ± 5 (20.7–22)
 Delay between sessions (hours)64.2 ± 99.2 (37.3–91.2)
 Invasive mechanical ventilation (days)17.3 ± 10.9 (15.2–19.4)
  Non-invasive ventilation (n)a73 (70.9%)
 Non-invasive ventilation (days)a3.2 ± 2.6 (2.6–3.8)
 Vasopressor (n)a101 (98.1%)
 Vasopressor duration (days)a9 ± 7.3 (7.6–10.5)
 Tracheostomy (n)a10 (9.7%)
 Renal replacement therapy (n)a29 (34%)
 Corticosteroids (n)a68 (66%)
 NMBA (n)a97 (94.2%)
 Extracorporeal membrane oxygenation (n)a1 (1%)
Complications and outcomes
 Pneumothorax (n)a2 (1.9%)
 Ventilation-associated pneumonia (n)a44 (49.7%)
 ICU length of stay (days)22.3 ± 13.8 (19.6–24.9)
 Hospital length of stay (days)27.2 ± 15.5 (24.2–30.1)
 ICU deaths with ARDS (n)34 (33%)
 ICU deaths (n)38 (36.9%)
 Hospital deaths (n)39 (37.9%)
  1. Values are expressed with n (%) or mean ± SD (95% confidence interval)
  2. BMI body mass index, ARDS acute respiratory distress syndrome, NMBA neuro-muscular blocking agents, ICU intensive care unit
  3. aAt any time within ICU stay