GPT and diabetes mellitus: Of 485 patients in the TPN Program, ten were excluded from the analysis due to outlier HOMA2-B values (3 patients), due to outlier HOMA2-IR values (2 patients), due to an outlying BMI value (1 patient), due to outlier ALT values (3 patients), or due to having age at onset of diabetes less than 18 (1 patient).