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
Model
OR (95% CI)
P value
Model I: Linear
1.1 (1.0, 1.3)
0.002
Model II: Piecewise Linear
 Inflection point of the AST/ALT ratio
3.6
  ≤ 3.6
1.4 (1.2, 1.6)
< 0.001
  > 3.6
1.0 (0.8, 1.1)
0.600
 Log-likelihood ratio test
-
0.011