Sample size
Pelvic pain, WL, pelvic pain
SECONDARY
Sample size was based on power analysis of a small randomized 3-armed pilot study (unpublished) for the primary outcome of pelvic pain between the groups: (1) PI vs. WL and (2) MY-ENDO vs. Non-specific and for the secondary outcome of QoL between the groups PI vs. WL. Pelvic pain was measured on NRS. The NRS scale score is standardized on a range from 0–10, defined by a mean of M = 6.0 and the standard deviation (SD) = 1.5. With the reasonable assumptions: Mean 