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Table 1 Characteristics of the patients

From: Spontaneous breathing trial and post-extubation work of breathing in morbidly obese critically ill patients

Patient Sex Age SAPS II Height Weight BMI Underlying Etiology of respiratory failure ETT ID MV before extubation PSV at baseline PEEP at baseline Extubation failure Outcome (D/S)
number   (years)   (cm) (kg) (kg/m2) diseases (mm) (days) (cmH2O) (cmH2O) (Y/N)
1 F 83 109 150 80 35 CHF Small bowel ischemia 7.5 7 8 6 N D
2 F 85 68 163 115 43 NIDDM Pneumonia 7.5 4 15 7 N S
3 M 64 50 170 130 44 NIDDM Acute pancreatitis 8 3 12 8 N S
4 F 59 60 155 95 39 None Peritonitis 7.5 3 12 8 N S
5 F 49 66 160 174 67 COPD, OSA Septic shock 7.5 6 10 10 N S
6 F 25 29 172 145 49 None Asthma 7.5 1 10 8 N S
7 F 54 19 153 121 51 Asthma, HTN Post abdominal surgery 7.5 1 10 8 N S
8 M 37 54 180 130 40 None Acute pancreatitis 8 14 8 10 N S
9 F 78 90 155 87 36 None Bowel obstruction 7.5 4 8 5 N S
10 F 49 78 167 112 41 Asthma, OSA Peritonitis 7.5 30 8 5 N S
11 F 73 77 150 93 41 CHF, AF Septic shock 7.5 4 12 6 N D
12 F 50 45 162 94 36 None Necrotizing fasciitis 7.5 2 9 7 N S
13 M 63 64 175 180 56 NIDDM, HTN Small bowel bleeding 7.5 1 8 10 N S
14 F 43 48 155 105 43 OSA, home ventilation Pneumonia 7.5 3 12 7 N S
15 F 77 41 155 84 36 NIDDM, HTN Pancreatitis 7.5 7 9 7 Y S
16 F 50 64 164 124 46 OSA, home ventilation Post abdominal surgery 7.5 8 14 8 N S
Mean   59 60 162 117 44 .    6 10 7   
SD   17 22 9 30 8 .    7 2 2   
  1. Abbreviations: AF atrial fibrillation, BMI body mass index; CHF chronic heart failure, D deceased; ETT ID endotracheal tube internal diameter; F female; M male; HTN hypertension, mechanical ventilation; NIDDM non-insulin-dependent diabetes mellitus; OSA obstructive sleep apnoea, PEEP positive end-expiratory pressure; PSV pressure support ventilation; SAPS II Simplified Acute Physiology Score II [34]; S survived