ALB and acute kidney injury: The top 20 feature variables were GCS score, vasoactive drugs, acute kidney failure, AIMS65 score, APACHE-II score, mechanical ventilation, lactate_min, chronic liver disease, APTT_min, APTT_max, potassium_max, acute heart failure, anticoagulants, albumin_max, APTT_mean, BUN_miin, sepsis, respiratory rate_max, WBC_min, and heart rate_max.