GPT and type 1 diabetes mellitus: Patients with T2D had significantly higher values than those with T1D for BMI SDS (2.2±0.6 vs. 0.80±0.9, p<0.001), ALT (48.3±47.4 vs. 19.2±6.2, p = 0.001), but lower mean 25(OH)D level (41.2 nmol/L ±15.3 vs. 53.7±14.6, p<0.001), and no difference in HbA1c (8.5±2.9% vs. 8.5±1.2, p = 0.94) and total daily dose (TDD) of insulin per kg body weight (0.85 units/kg ±0.4 vs. 0.88±0.3, p = 0.48) (Table 3).