FABP1 and metabolic dysfunction-associated steatohepatitis: Liver fatty acid-binding protein levels in the NASH group (mean: 8, range: 7.3-11.5 ng/mL) were significantly higher than those in the non-NASH group (mean: 5.4, range: 1.4-8.5 ng/mL) (P = .001) (Figure 2).