Agustín Camus-Molina1, Felipe González-Seguel2, Ana Cristina Castro-Ávila3, Jaime Leppe4. 1. Servicio de Medicina Física y Rehabilitación, Departamento de Medicina Interna, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile; Departamento de Paciente Crítico, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile; School of Physical Therapy, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile. 2. Servicio de Medicina Física y Rehabilitación, Departamento de Medicina Interna, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile; Departamento de Paciente Crítico, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile; School of Physical Therapy, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile. Electronic address: feligonzalezs@udd.cl. 3. School of Physical Therapy, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile; Department of Health Sciences, University of York, York, United Kingdom. 4. School of Physical Therapy, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile.
Abstract
OBJECTIVE: To evaluate the construct validity (hypotheses testing) of the Chilean-Spanish version of the Functional Status Score for the Intensive Care Unit (FSS-ICU) using continuous actigraphy from intensive care unit (ICU) admission to ICU discharge. DESIGN: The Chilean-Spanish version of the FSS-ICU was used in a prospective observational study to mainly evaluate its correlation with actigraphy variables. The FSS-ICU was assessed on awakening and at ICU discharge, while actigraphy variables were recorded from ICU admission to ICU discharge. SETTING: A 12-bed academic medical-surgical ICU. PARTICIPANTS: Mechanically ventilated patients (N=30), of 92 patients screened. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Construct validity of the FSS-ICU Chilean-Spanish version was assessed by testing 12 hypotheses, including the correlation with activity counts, activity time (>99 counts/min), inactivity time (0-99 counts/min), muscle strength, ICU length of stay, and duration of mechanical ventilation. RESULTS: The median FSS-ICU was 19 points (interquartile range [IQR], 10-26 points) on awakening and 28.5 points (IQR, 22-32 points) at ICU discharge. There was no floor/ceiling effect of the FSS-ICU at awakening (0%/0%) and only a ceiling effect at ICU discharge that was acceptable (0%/10%). Less activity time was associated with better mobility on the FSS-ICU at both awakening (ρ=-0.62, P<.001) and ICU discharge (ρ=-0.79, P<.001). Activity counts and activity time were not correlated as expected with the FSS-ICU. CONCLUSIONS: The Chilean-Spanish FSS-ICU had a strong correlation with inactivity time during the ICU stay. These findings enhance the available clinimetric properties of the FSS-ICU.
OBJECTIVE: To evaluate the construct validity (hypotheses testing) of the Chilean-Spanish version of the Functional Status Score for the Intensive Care Unit (FSS-ICU) using continuous actigraphy from intensive care unit (ICU) admission to ICU discharge. DESIGN: The Chilean-Spanish version of the FSS-ICU was used in a prospective observational study to mainly evaluate its correlation with actigraphy variables. The FSS-ICU was assessed on awakening and at ICU discharge, while actigraphy variables were recorded from ICU admission to ICU discharge. SETTING: A 12-bed academic medical-surgical ICU. PARTICIPANTS: Mechanically ventilated patients (N=30), of 92 patients screened. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Construct validity of the FSS-ICU Chilean-Spanish version was assessed by testing 12 hypotheses, including the correlation with activity counts, activity time (>99 counts/min), inactivity time (0-99 counts/min), muscle strength, ICU length of stay, and duration of mechanical ventilation. RESULTS: The median FSS-ICU was 19 points (interquartile range [IQR], 10-26 points) on awakening and 28.5 points (IQR, 22-32 points) at ICU discharge. There was no floor/ceiling effect of the FSS-ICU at awakening (0%/0%) and only a ceiling effect at ICU discharge that was acceptable (0%/10%). Less activity time was associated with better mobility on the FSS-ICU at both awakening (ρ=-0.62, P<.001) and ICU discharge (ρ=-0.79, P<.001). Activity counts and activity time were not correlated as expected with the FSS-ICU. CONCLUSIONS: The Chilean-Spanish FSS-ICU had a strong correlation with inactivity time during the ICU stay. These findings enhance the available clinimetric properties of the FSS-ICU.
Authors: Felipe González-Seguel; Juan José Pinto-Concha; Francisco Ríos-Castro; Alexis Silva-Gutiérrez; Agustín Camus-Molina; Kirby P Mayer; Selina M Parry Journal: Arch Rehabil Res Clin Transl Date: 2021-07-13