Association of Vitamin D with Functional Cure in Chronic Hepatitis B: Insights from A Retrospective Cohort Study and An Intervention Study

Functional cure for chronic hepatitis B (CHB) patients can be achieved using nucleos(t)ide analogues (NAs) and pegylated interferon alpha (Peg-IFNα) combination treatment. However, the role of vitamin D in functional cure remains unclear. We aimed to investigate the association between vitamin D levels and functional cure in CHB patients.