| Summary: | Objective To assess the association between neutrophil percentage-to-albumin ratio (NPAR) and 28-day mortality in severely ill Chinese patients with sepsis. Methods In this retrospective, single-centre study, sepsis patients admitted to the ICU of the Affiliated Hospital of Jining Medical University between May 2015 and December 2021 were retrospectively analysed. The relationship between NPAR and 28-day mortality was examined using Cox proportional-hazards model. Results In total, 741 patients with sepsis were included. Multivariate analysis, adjusted for age, sex, body mass index (BMI), smoking and alcohol drinking history, showed an association between elevated NPAR and a high risk of 28-day mortality. After removal of additional confounders, moderate and high NPAR values remained significantly associated with 28-day mortality in comparison with low NPAR values (tertile 2 vs 1: HR, 95% CI: 1.42, 1.06–1.90; tertile 3 vs 1: HR, 95% CI: 1.35, 1.00–1.82). Survival curves stratified by NPAR groups showed that high NPAR levels had lower survival probabilities than lower NPAR levels. Subgroup analysis did not show any significant interactions between NPAR and 28-day mortality. Conclusions Elevated NPAR values were linked to increased 28-day mortality in severely ill Chinese patients with sepsis. The findings require verification by large, prospective, multi-centre studies.
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