Furthermore, hypoalbuminemia anytime during hospitalization was associated with a higher risk for severe AP (OR 10.664; CI 6.188–19.614), and a gradual increase of odds ratios can be observed in the low albumin groups (OR 2.359; CI 1.030–5.240 for Group 5; OR 11.709; CI 6.038–23.515 for Group 6; and OR 48.761; CI 25.276–98.908 for Group 7). Here, ALB is linked to alkaline phosphatase measurement.