MB and anemia: In the multivariable logistic regression model, hemoglobin remained a protective factor (OR = 0.531 per g/dL increase, 95% CI 0.377–0.748, p < 0.001), though D-dimers did not remain as an independent predictor when adjusted for myoglobin and serum K. This suggests that anemia’s effect on AKI risk is more independent of confounders in our cohort.