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From 1993 through 2021, a review of surgical cases for primary UPS was undertaken. Using receiver operating curve analysis, the cutoff points for NLR and PLR were identified. Cox proportional hazards regression was employed in both univariate and multivariate analyses to ascertain prognostic factors. The research cohort comprised eighty-six patients. NLR's optimal cutoff value was 33, and PLR's corresponding optimal cutoff was 190. Univariate analysis established