In multivariable analyses, serum albumin <2.5 g/dL was independently associated with K1-AKI (subdistribution hazard ratio [sHR] 1.85, 95% confidence interval [CI] 1.17–2.93, p = 0.009) and K2-AKI (sHR 2.37, 95% CI 1.15–4.87, p = 0.019). Here, ALB is linked to acute kidney injury.