Validation of the Raw National Aeronautics and Space Administration Task Load Index (NASA-TLX) Questionnaire to Assess Perceived Workload in Patient Monitoring Tasks: Pooled Analysis Study Using Mixed Models

Sadiq Said   ^{1 *} ;   Malgorzata Gozdzik   ^{1 *} ;   Tadzio Raoul Roche   ¹ ;   Julia Braun   ² , PhD ;   Julian Rössler   ¹ ;   Alexander Kaserer   ¹ , MD ;   Donat R Spahn   ¹ , MD ;   Christoph B Nöthiger   ¹ , MD ;   David Werner Tscholl   ¹ , MD

¹ Department of Anesthesiology, University Hospital Zurich, Zurich, Switzerland

² Department of Epidemiology and Biostatistics, University of Zurich, Zurich, Switzerland

*these authors contributed equally