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Table 1 Characteristics and demographics data of t population (n = 38)

From: Brachial artery peak velocity variation to predict fluid responsiveness in mechanically ventilated patients

Age (years) 54.5 (45 to 69)
Gender (M/F) 19/19
Body surface area (m2) 1.90 (1.73 to 2.03)
Death, n (%) 11 (29%)
ICU stay before inclusion (days) 1 (1 to 2)
Ventilator settings  
   Tidal volume, mL/Kg ideal body weight 9 (8 to 10)
   Respiratory rate, breaths/min 20 (18 to 20)
   Total PEEP, cm H2O 6 (4 to 6)
   FiO2, % 63 (50 to 80)
   SaO2, % 98.5 (95 to 99)
Norepinephrine, n; dose (μ/kg/min) 17; 0.52 (0.38 to 0.9)
Dobutamine, n; dose (μg/kg/min) 4; 7.11 (4.89 to 11.04)
Sepsis, n (%)  
   Abdominal 11 (29%)
   Pulmonary 3 (8%)
   Neurological 3 (8%)
   Urological 2 (5%)
   Skin and soft tissues 1 (3%)
  1. Values are expressed as absolute numbers or median with interquartile range (25th to 75th percentiles). F: female; FiO: inspired oxygen fraction; ICU: intensive care unit; M: male; PEEP: positive end-expiratory pressure; SaO2 : arterial oxygen saturation.