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Table 1 baseline characteristics of the patients

From: Regional expiratory time constants in severe respiratory failure estimated by electrical impedance tomography: a feasibility study

Age (years) 57 ± 15
Gender (female/male) 4/10
Pneumonia 13/14
History of COPD (GOLD II-IV)a 7/14
ARDSa 8/14
SAPS II at admission 35 ± 10
LTOT before 4/14
Home NIV before 2/14
Active smoking 11/14
Mortality 3/14
Days on mechanical ventilation 36 ± 26
Days in ICU 41 ± 37
Respiratory system mechanics and blood gas analysis
 pH day 1 7.24 ± 0.1
 PaCO2 day 1 (mmHg) 72 ± 20
 PaO2 day 1 (mmHg) 82 ± 19
 P/F ratio day 1 (mmHg) 124 ± 41
 PEEP day 1 (cmH2O) 14 ± 2
 Pinsp day 1 (cmH2O) 30 ± 4
 Tidal volume day 1 (ml) 470 ± 88
 PEEP day 7 (cmH2O) 13 ± 2
 Pinsp day 7 (cmH2O) 26 ± 4
 Tidal volume day 7 (ml) 450 ± 101
  1. Baseline characteristics of all patients included in the study
  2. COPD chronic obstructive pulmonary disease, GOLD Global Initiative for Chronic Obstructive Lung Disease, LTOT long-term oxygen therapy, SAPS Simplified Acute Physiology Score, NIV non-invasive ventilation, PaCO2 partial arterial pressure of carbon dioxide, PaO2 partial arterial pressure of oxygen, PEEP positive end-expiratory pressure, Pinsp peak inspiratory pressure
  3. aMay occur at the same time