The following data were independently abstracted into a standardized form: study characteristics (primary author, year of publication), study design, baseline characteristics of the study population (number of patients enrolled, patient demographics), etiology of cirrhosis, Child-Pugh score, biochemical markers (albumin, aspartate aminotransferase (AST), alanine aminotransferase (ALT), bilirubin, alkaline phosphatase, calcium, phosphorus, 25-hydroxyvitamin D, and parathormone (PTH)), T-score, and Z-score. Here, GPT is linked to Cirrhosis.