After adjusting for confounders, multivariate logistic regression showed that higher EOS quartiles were associated with reduced in-hospital mortality in HFrEF patients, with quartile 3 (Q3) (OR 0.54, 95% CI 0.31–0.96, P = 0.035) and Q4 (OR 0.37, 95% CI 0.19–0.71, P = 0.003) showing significant protective effects compared with the lowest EOS quartile (Q1), while Q2 did not reach statistical significance ( P = 0.931).
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Association between blood eosinophil levels and prognosis in critically ill patients with different heart failure phenotypes.
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