Table 1.

Study’s variables

Variables	Variable’s description
ICU admission data
Date of inclusion in the study	Dd/mm/yyyy
Full name and register number:
Age	Years
Sex	Biological (male/female)
Date of hospital admission	Dd/mm/yyyy
BMI	kg/m2
Date of ICU admission	Dd/mm/yyyy
Saps III	Points
Ph	Arterial blood gas measurement
PaO2/FiO2 ratio	Oxygenation index
Main cause of ICU admission	Neurological, cardiovascular, respiratory, gastrointestinal and others
Type of admission	Clinic, elective or emergency surgery
Comorbidities Charlson Index	Points
Main cause of MV	Decreased level of consciousness, ARF, cardiorespiratory arrest, surgery
MV data and times
IMS scale	Highest level within 24 hours after intubation
Patient on MV—daily evaluation
Sedatives	Yes or no
Neuromuscular blocker	Yes or no
Vasoactive drug	Yes or no
IMS scale	Highest level
Extubation data
Extubation	Yes or no
Extubation date and time
IMS scale	Highest level within 24 hours
Extubated patients’ outcome
Extubation outcome	Success or failure (reintubation <48 hours)
IMS	Highest level within 24 hours after extubation
Reintubation
Date and time reintubation	Dd/mm/yyyy
Cause of reintubation	Check protocol
Final outcome
Duration of invasive MV	Days
Invasive MV free time in the ICU	Days
ICU length of stay	Days
ICU mortality	N (%)
Hospital length of stay	Days
Hospital mortality	N (%)

ARF, acute respiratory failure; BMI, body mass index; ICU, intensive care unit; IMS, ICU Mobility Scale; MV, mechanical ventilation; SAPS, Simplified Acute Physiology Score.