Trial Information

Due to the observational nature of the study which aims to evaluate the internal consistency
and validity of the Korean version of Questionnaire, formal sample size and power
calculations were not performed. When the number of observations (items) per subject ranges
from 4 to 6, roughly 152-199 patients are required to show 10% increase in intraclass
correlation from baseline ICC of 30% with 85% power and 5% type I error rate. The sample
size was determined based on this calculation and practical considerations.

The pilot study will be performed based on 30 people (include reference), and the main study
will include 880 people (considering 10% drop-out from 200 people in each group) gynecologic
cancer(ovary, cervix and endometrium) and healthy female. Total 910 patients.