Statistical analysis
postoperative anxiety
Our primary aim was to determine the difference between postoperative anxiety levels in terms of VAS-A scores between the two groups. A sample size of 92 (46 in each group) provided 85% power, with the following assumptions: mean difference (MD) of postoperative VAS-A between control and experimental groups of 2.1 (standard deviation (SD) 3.3), allocation ratio 1:1, and level of significance of 5% [