Impact of Pre-Operative Ureteroscopy on Bladder Recurrence Following Nephroureterectomy for UTUC.

Other factors, such as open bladder cuff excision ( p = 0.119), multifocal ureteric tumours ( p = 0.137), and post-RNU bladder instillation of chemotherapy ( p = 0.064), were included in the multivariate analysis model as they were of near statistical significance ( p < 0.2).

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Variables included in the multivariate analysis were those identified as either significant ( p < 0.05) or near-significant ( p < 0.2) in the univariate analysis, known contributory factors documented in existing literature, or those that existed as baseline discrepancies between groups.

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