Procalcitonin/albumin to urea nitrogen ratio: a novel prognostic indicator for severe fever with thrombocytopenia syndrome.

BMC Infect Dis · 2026 · PMC12924486 · PMID 41612268

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Bootstrap internal validation yielded a calibration curve closely approximating the diagonal, confirming robust predictive efficacy of the composite model.Kaplan-Meier analysis revealed significantly worse prognosis in high-PAU patients ( P < 0.001).The longitudinal trend analysis revealed an increasing trend in PAU among non-survivors, while survivors exhibited a decreasing trend.

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