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Annals of Intensive Care
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Table 1. Patients characteristics

From: The relationship between maximal expiratory pressure values and critical outcomes in mechanically ventilated patients: a post hoc analysis of an observational study

  N = 124
Sex F/M, n
Age, median (IQR)
Body mass index (kg/m²), median (IQR)
SAPS II at ICU admission, median (IQR)
ICU admission in the last years, n (%) 		51/73
66 (18)
27.8 (6.6)
45 (24)
8 (6)
Main diagnosis
 Pneumonia, n (%)
 Sepsis, n (%)
 COPD/asthma exacerbation, n (%)
 Cardiac failure, n (%)
 Drug overdose/acute mental status change, n (%)
 Intra-abdominal sepsis with surgery, n (%)
 Trauma, n (%) 		33 (27)
9 (7)
21 (17)
19 (15)
16 (13)
20 (16)
6 (5)
Comorbidities
 Chronic pulmonary disease, n (%)
 Obesity, n (%)
 Chronic cardiac insufficiency, n (%)
 Chronic kidney disease, n (%)
 Cancer, n (%)
 Diabetes, n (%)
 Chronic alcoholism, n (%)
 Active smoking, n (%)
 Malnourishment, n (%) 		28 (22)
36 (29)
19 (15)
20 (16)
19 (15)
30 (24)
30 (24)
29 (23)
10 (8)
Between admission and extubation
 Septic shock, n (%)
 ARDS, n (%)
 Renal failure, n (%)
 Use of catecholamines, n (%)
 Use of neuromuscular blockers, n (%)
 No. of days of neuromuscular blockers, median (IQR)
 Use of corticosteroids, n (%)
 ICU length of stay, median (IQR)
 Ventilator use (days), median (IQR)
 MIP (cmH2O), median (IQR)
 MEP (cmH2O), median (IQR)
 ICU-acquired weakness, n (%)a 		61 (49)
11 (9)
38 (31)
64 (52)
76 (61)
1 (2)
34 (27)
10 (9)
7 (6)
47 (44)
47 (24)
49 (49)
  1. ARDS acute respiratory distress syndrome, COPD chronic obstructive pulmonary disease, ICU intensive care unit, IQR interquartile range, MEP maximal expiratory pressure, SAPS Simplified Acute Physiology Score
  2. a99 of the 124 patients were assessed for ICU-acquired weakness (MRC score)
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