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Table 1 Baseline characteristics of enrolled patients

From: Physiological effects of high-flow oxygen in tracheostomized patients

No. of patients 26
Age, years 57 [48–71]
Female sex, no. (%) 4 (15)
Height, cm 175 [168–180]
Body weight, kg 75 [70–85]
Body mass index, kg/m2 25 [24–28]
SAPS II 46 [41–60]
Patients with history of COPD, no. (%) 5 (19)
ICU admission, no. (%)
 Medical 12 (46)
 Surgical 7 (27)
 Trauma 7 (27)
Cause of prolonged need for mechanical ventilation, no (%)
 Respiratory failure 8 (31)
 Traumatic brain injury 7 (27)
 Non-traumatic brain injury 11 (42)
Length of mechanical ventilation before enrollment, days 11 [8–13]
Glasgow coma scale at enrollment 10 [6–15]
PaO2/FiO2 during standard oxygen, mmHga 238 [197–311]
Tracheal cannula inner diameter, mm 9 [8.5–10]
Tracheal cannula external diameter, mm 12.3 [12.3–12.3]
Length of ICU stay, days 20 [14–26]
In-ICU mortality, no. (%) 3 (12)
  1. Results are displayed as medians [interquartile range], if not otherwise specified
  2. SAPSII simplified acute physiology score 2 at ICU admission, COPD chronic obstructive pulmonary disease, ICU intensive care unit
  3. aMeasured during the standard oxygen step of the experiment