Comorbidities

The following comorbidities are available in the dataset. These are based upon the APACHE chronic health items.

• aids - Whether the patient has a definitive diagnosis of acquired immune deficiency syndrome (AIDS) (not HIV positive alone)
• cirrhosis - Whether the patient has a history of heavy alcohol use with portal hypertension and varices, other causes of cirrhosis with evidence of portal hypertension and varices, or biopsy proven cirrhosis. This comorbidity does not apply to patients with a functioning liver transplant.
• diabetes_mellitus - Whether the patient has been diagnosed with diabetes, either juvenile or adult onset, which requires medication.
• hepatic_failure - Whether the patient has cirrhosis and additional complications including jaundice and ascites, upper GI bleeding, hepatic encephalopathy, or coma.
• immunosuppression - Whether the patient has their immune system suppressed within six months prior to ICU admission for any of the following reasons; radiation therapy, chemotherapy, use of non-cytotoxic immunosuppressive drugs, high dose steroids (at least 0.3 mg/kg/day of methylprednisolone or equivalent for at least 6 months).
• leukemia - Whether the patient has been diagnosed with acute or chronic myelogenous leukemia, acute or chronic lymphocytic leukemia, or multiple myeloma.
• lymphoma - Whether the patient has been diagnosed with non-Hodgkin lymphoma.
• solid_tumor_with_metastasis - Whether the patient has been diagnosed with any solid tumor carcinoma (including malignant melanoma) which has evidence of metastasis.