SERPINA1 and Abnormal intestine morphology: To evaluate associations between enteropathy and mortality, admission levels of one serum and three fecal markers for intestinal function are compared between NS and S. We found that levels of calprotectin, MPO, or AAT do not differ between NS and S, with or without adjusting for edema or site (Praw > 0.05, Padjusted > 0.05) (Fig. 3a).