Figure 2
ISAS, Iowa Satisfaction with Anaesthesia Scale15 (copyrighted by Franklin Dexter and the University of Iowa Research Foundation). For items 1, 3, 5, 7, 9, and 11, the scores are calculated as follows: + 6, agree very much; + 5, agree moderately; + 4, agree slightly; + 3, disagree slightly; + 2, disagree moderately; + 1, disagree very much. For items 2, 4, 6, 8, and 10, the scores are calculated in the reverse order from the aforementioned items.
