GPT and fibrosis: Results. Compared with men, women tended to present at an older age (51.4 ± 10.6 vs 45.3 ± 11.2 years, P < 0.001), were more likely to be Caucasian (P = 0.003), less likely to present with an elevated alanine aminotransferase (ALT) (75.2% vs 88.8%), and more likely to have advanced non-alcoholic steatohepatitis (NASH) (44.7% vs 29.9%; P = 0.04) and advanced fibrosis (23.3% vs 14.1%; P = 0.03).