Sample size
SECONDARY
The two-sided test was adopted, setting the level of significance alpha at 5% (α = 0.05) and the power of the sample at 80% (β = 0.20). According to the pre-test results, the FSFI scores of the exposure group and control group were 20.87 ± 6.87 and 23.75 ± 5.50 respectively. Considering a dropout rate of 10%, the estimated sample size was N1 = N2 = 65 cases by using PASS 15 software.
FSFI score of patients in vNOTES group pre- and post-operationThe primary outcome was the FSFI score at 3 and 6 months after surgery. The secondary outcome was the time to start sexual life after surgery. The patient’s age, height, weight, surgical type, the time to start sexual life after surgery, the preoperative FSFI score, and the postoperative FSFI score after 3 and 6 months were collected.