Table 3.

Data from the ICU admission

Arterial blood gases upon admission	pH	7.25 (±0.07)
	paO2	112 (±65) mm Hg
	paCO2	77 (±17) mm Hg
	FiO2	0.45 (±0.15)
	paO2/FiO2 ratio	256 (±115)
Respiration/ventilation	Respiratory rate	22 (±8)
	IPAP—inspiratory positive airway pressure	19 (±4) mbar
	PEEP—positive end-expiratory pressure	6 (±2) mbar
	NIV duration	5 (2–10) days
	Secondary intubation	18 patients (15%)
	Days spent intubated	5 (2–7) days
Laboratory results	Hemoglobin	13.5 (±2) g/dl
	CRP	38 (10–95) mg/l
	Lactate	2.7 (±1.5) mmol/l
ICU Scores	SAPS II score	34 (±11)
	SAPS II predicted mortality	14 (8–22) %
	TISS 28	30 (±6)

ABG arterial blood gas, FiO2 fraction of inspired oxygen, paO2/FiO2 ratio ratio of paO2 over FiO2, CRP C-reactive protein, NIV non-invasive ventilation, SAPS II Simplified Acute Physiology Score II, TISS 28 Therapeutic Intervention Scoring System