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Association between the CPIS and NLR (A), PLR (B), SII (C) and SIRI (D) using Spearman’s analysis. The NLR had the highest correlation coefficient. CPIS, clinical pulmonary infection score; CI, confidence interval; NLR, neutrophil-to-lymphocyte ratio; SII, systemic immune-inflammation index; PLR, platelet-to-lymphocyte ratio; SIRI, systemic inflammation response index.
