The National Aeronautics and Space Administration‐task load index: NASA‐TLX: evaluation of its use in surgery

Fig. 1. NASA‐TLX score versus surgeon's assessment, operative time, blood loss & previous surgery. NASA‐TLX: National Aeronautics and Space Administration Task Load Index. Surgeon's assessment: 1 = Easy. 2 = Moderate, 3 = Difficult; Previous surgery: 0 = no previous surgery, 1 = prior surgery.

Fig. 2. NASA TLX score vs. length of stay, intra‐ and post‐operative complications. NASA‐TLX: National Aeronautics and Space Administration Task Load Index. Complications: 0 = no; 1 = yes.

Fig. 3. Individual NASA TLX scores generated by each surgeon median and IQR (whisker plot) and 95% confidence interval (box plot). NASA‐TLX: National Aeronautics and Space Administration Task Load Index.