Statistical analysis
SD
REGRESSION, ADVERSE EVENTS
At least six crossover pairs in the same direction and at least 20 patients are required for statistical analysis according to modified Dixon’s up-and-down method; therefore, patient enrollment continued until at least six success-to-failure pairs with 20 or more patients were reached [We also analyzed our data using isotonic regression with a pooled adjacent violators algorithm (PAVA) and a bootstrapping approach to estimate the EDHemodynamic and BIS variables over time were analyzed using one-way repeated measure analysis of variance with a Bonferroni correction. Paired sample t-tests were used to compare baseline hemodynamic and BIS variables with other periods. Analyses of these results were performed for patients in whom I-gel insertion was successful.LOC time was compared between the success and failure groups using a two-sample t-test. Analysis of adverse events between the success and failure groups was performed using Fisher’s test. All values are expressed as mean ± SD or number of patients. Statistical analyses were performed using R (version 4.05; R Foundation for Statistical Computing, Vienna, Austria) and a 