Table 3.
Agreement between MRI and SUPeR Failure Definitions Overall and within Surgical Repair Performed
| SUPeR Failurea N=22 | SUPeR Successa N=66 | Kappa (95% CI)b | p-valueb | |
|---|---|---|---|---|
| MRI Failure (any point beyond hymen) | ||||
| Overall | 0.23 (0.03 to 0.43) | 0.02 | ||
| MRI Failure, n/N (%) | 14/22 (64) | 23/66 (35) | ||
| MRI Success, n/N (%) | 8/22 (36) | 43/66 (65) | ||
| Mesh Repair | 0.33 (0.01 to 0.62) | 0.03 | ||
| MRI Failure, n/N (%) | 5/8 (63) | 8/37 (22) | ||
| MRI Success, n/N (%) | 3/8 (38) | 29/37 (78) | ||
| Native Tissue Repair | 0.11 (−0.13 to 0.37) | 0.52 | ||
| MRI Failure, n/N (%) | 9/14 (64) | 15/29 (52) | ||
| MRI Success, n/N (%) | 5/14 (36) | 14/29 (48) |
CI, confidence interval; MRI, magnetic resonance imaging; SUPeR, Study of Uterine Prolapse Procedures Randomized.
SUPeR failure is defined as a prolapse beyond the hymen or the presence of bothersome bulge symptoms at the SUPeR visit closest to MRI imaging, or undergoing retreatment (surgery or pessary) for pelvic prolapse through the SUPeR visit closest to MRI imaging. SUPeR success is defined as no prolapse beyond the hymen and the absence of bothersome bulge symptoms at the SUPeR visit closest to MRI imaging as well as no retreatment (surgery or pessary) for pelvic prolapse through the SUPeR visit closest to MRI imaging.
The chance-adjusted measurement of agreement simple Kappa statistic typically ranges from 0 (agreement is totally by chance and expected) to 1 (perfect agreement). Low negative values (0.00 to −0.10) for the Kappa statistic may generally be interpreted as no agreement. 95% confidence intervals were obtained via bootstrapping and p-values were based on exact tests for simple Kappa statistic. All tests were conducted at a 0.05 significance level, and p-values <0.05 are bolded.