ALB and acute kidney injury: The top 20 feature variables were acute kidney failure, transfusion albumin, vasoactive drugs, transfusion plasma, transfusion platelet, INR_max, PT_max, AIMS65 score, PT_mean, APTT_max, APACHE-II score, bilirubin_max, diabetes, INR_mean, bilirubin_mean, GCS score, APTT_min, INR_min, APTT_mean, and bilirubin_min.