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Background: The pelvic organ prolapse quantification system (POP-Q) is a relatively complex and it is often interpreted as being difficult to learn. An international committee devised a simplified version of the POP-Q (S-POP) classification system that retained the ordinal stages of the POP-Q system but simplified the terminology and reduced the number of points measured.
Objective: To determine the correlation between POP-Q and simplified version of POP-Q (S-POP) in patients examined by urogynecologists and first-year-obstetrics and gynaecology (OB&GYN) residents, respectively.
Methods: A cross-sectional study was conducted in 100 subjects with or without symptoms of pelvic floor disorder, attending the Urogynecology Clinic at Ramathibodi Hospital. Subjects underwent two separate pelvic examinations at that visit; POP-Q examination by urogynecologists, and S-POP examination by the first-year-OB&GYN residents. The ordinal stages from each segment were recorded and the inter-system agreement was evaluated using kappa analysis.
Results: According to the POP-Q system, pelvic organ prolapse overall stage I, II, III and IV were demonstrated in 8%, 54%, 27% and 11%, respectively. Regarding the intersystem agreement, kappa statistics for overall stage was 0.77, for the anterior vaginal wall was 0.79, for the posterior vaginal wall was 0.78, for the cervix was 0.73, and for the vaginal cuff was 0.56.
Conclusion: There was substantial agreement between the POP-Q examination by urogynecologists and the S-POP examination by first-year-OB&GYN residents.
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