ALB and chronic obstructive pulmonary disease: The unweighted risk score for unplanned resource utilization events was equal to the sum of one point for each of the following: dependent functional status, BMI greater than 50 kg/m2, hypertension, insulin-dependent diabetes, being a current smoker, COPD, CHF, chronic steroid use, bleeding disorders, sodium less than 135 mmol/l, creatinine greater than 1.5 mg/dl, and albumin less than< 3.5 g/dl (c-statistic: 0.560).