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Table 1 Patient characteristics for overall study cohort

From: The impact of critical illness on the expiratory muscles and the diaphragm assessed by ultrasound in mechanical ventilated children

Characteristics n = 34
Age, months 5.5 (1–28.3)
Sex, female 19 (56)
Body weight, kg 6.6 (4.8–13.6)
Pediatric index of mortality 2 score, % 1.64 (0.6–5)
Admission diagnosis
 Bronchiolitis 17 (50)
 Pneumonia 7 (20.6)
 Upper airway obstruction 3 (8.8)
 Status asthmaticus 2 (5.9)
 Post-cardiac arrest 1 (2.9)
 Neurological disease/trauma 3 (8.8)
 Severe sepsis 1 (2.9)
Subjects with co-morbidities 11 (32.4)
Initial ventilator mode
 Controlled (PCV, PRVC, VCV) 22 (64.7)
 Partial assist (PSV) 12 (35.3)
Initial ventilator settings
 VT, ml/kg 6.4 (5.8–7)
 PEEP, cmH2O 5 (4–6)
  FiO2 0.4 (0.3-0.6)
 Peak-PEEP, cmH2O 17.5 (11.8–25.2)
Kidney failure 2 (5.9)
Inotropes (> 12 h) 3 (8.8)
Vasopressors (> 12 h) 6 (18.8)
Neuromuscular blockade (> 12 h) 3 (8.8)
Systemic corticosteroids (> 24 h) 6 (17.6)
Failed extubation 3 (8.8)
Duration of MV, hours 112 (67–159)
PICU length of stay, days 6 (4–9)
Mortality 3 (8.8)
  1. Results are presented as median (IQR) or number (percent)
  2. IQR, interquartile range; MV, mechanical ventilation; PCV, pressure control ventilation; PRVC, pressure regulated volume control; VCV, volume controlled ventilation; PSV, pressure support ventilation; VT, tidal volume; PEEP, positive end-expiratory pressure; kg, kilogram