Clinical features, including severe pancreatitis history [odds ratio (OR) = 4.757; 95% confidence interval (CI): 1.758–12.871], diabetes mellitus (OR = 6.919; 95% CI: 2.084–22.967), history of biliary surgery (OR = 9.232; 95% CI: 3.022–28.203), hemoglobin (OR = 0.974; 95% CI: 0.955–0.994), albumin (OR = 0.888; 95% CI: 0.825–0.957), and body mass index (OR = 0.851; 95% CI: 0.753–0.962), were significantly associated with the incidence of PPC after AP in the training sets. Here, ALB is linked to pancreatitis.