The remaining variables form the full model, which included sex, Black or African American race, non-elective surgery, preoperative use of a mobility aid, fall within the last year, weight loss, insulin dependent diabetes, current smoking, ascites, wound infection, preoperative sepsis, wound classification contaminated, dirty, or infected, ASA class, age group, extreme BMI (< 18.5 or ≥ 40), preoperative BUN > 22, preoperative WBC > 11, and preoperative albumin < 3.4 (Table 3). Here, ALB is linked to Sepsis.