Journal
INTERNATIONAL JOURNAL OF GYNECOLOGICAL CANCER
Volume 23, Issue 5, Pages 890-894Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/IGC.0b013e318292da65
Keywords
FIGO staging; Cervical cancer; Interobserver variability; Examination under anesthesia
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Funding
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Erasmus University Medical Center, Rotterdam, the Netherlands
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Objective: The objective of this study was to assess the interobserver variability of pelvic examination under anesthesia (EUA) in cervical cancer. Methods: Subsequent patients undergoing a staging procedure under anesthesia for primary cervical cancer were enrolled in the study. All clinicians assessed blinded'' tumor size, and the involvement of vagina, parametria, sacrouterine ligaments, pelvic sidewalls, bladder, and/or rectum. Items were scored varying from 1 (certainly no involvement''), 2 (not sure about involvement''), to 3 (''involvement''). Each individual decided on the International Federation of Gynecology and Obstetrics (FIGO) stage; also, the urge for imaging and treatment proposal were accounted for. Final FIGO staging was obtained by consensus of the team. Investigators were classified as experienced after more than 50 EUAs. All others were classified less experienced. The free-marginal kappa values between experienced and less experienced investigators were calculated for all previously mentioned items. Results: Between February 2009 and December 2010, a total of 86 patients were enrolled. Among experienced investigators, a moderate interobserver agreement was found with regard to FIGO stage (free-marginal kappa value of 0.49) and an excellent interobserver agreement on their proposed therapy (free-marginal kappa value of 0.84). A lower level of agreement was found when comparing experienced with less experienced investigators: only a slight level of agreement on FIGO stage and a substantial agreement on their therapy proposal (free-marginal kappa values of 0.03 and 0.66). Conclusions: We describe only a moderate interobserver agreement on clinical staging of patients with cervical cancer. The interobserver agreement increases in the group of experienced doctors, indicating that EUA can be learned.
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