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Fig. 2 | BMC Gastroenterology

Fig. 2

From: Nonlinear association between AST/ALT ratio and 28-day all-cause mortality following ICU admission in critically ill cirrhotic patients: a retrospective cohort study

Fig. 2

Smooth curve fitting for the relationship between AST/ALT ratio and 28-day mortality following ICU admission. The red line represents the estimated probability of mortality, and the green lines indicate the 95% CIs. The analysis identified an inflection point at an AST/ALT ratio of 3.6 (indicated by the vertical dotted line), where the relationship between AST/ALT ratio and mortality risk changes significantly. Below this threshold, each unit increase in AST/ALT ratio was associated with a 40% increase in mortality risk (odds ratio [OR] = 1.4, 95% confidence interval [CI] 1.2–1.6, p < 0.001), while above 3.6, the relationship attenuated substantially (OR = 1.0, 95% CI 0.8–1.1, p = 0.600)

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BMC Gastroenterology

ISSN: 1471-230X

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