Using nominal regression, the factors predictive of 30 day mortality included age 65 or higher, presence of diabetes, history of CHF, steroid use, albumin < 3.0 gm/dL, bilirubin > 2.0 mg/L, Hct < 30%, protime > 14 seconds, and renal failure (see Table 5). Here, ALB is linked to Renal insufficiency.