The Potential Role of Fatigue in Identifying Patients With NASH and Advanced Fibrosis Who Experience Disease Progression

BACKGROUND AND AIMS: Fatigue is common in patients with advanced liver disease. We investigated fatigue and clinical outcomes among patients with advanced nonalcoholic steatohepatitis (NASH). METHODS: In this study, patients with biopsy confirmed NASH and bridging fibrosis (F3) or compensated cirrhosis (F4) were followed for up to 2 years. The Chronic Liver Disease Questionnaire for Nonalcoholic Steatohepatitis (CLDQ-NASH) fatigue domain at baseline (range, 1-7; lower score indicating worse fatigue) quantified fatigue. The Cox proportional hazards model was used to study time to liver-related clinical events (progression to histologic cirrhosis or hepatic decompensation in F3, hepatic decompensation in F4). RESULTS: Of the 1679 NASH patients with fibrosis, 802 had F3 and 877 had F4 (58 +/- 9 years of age, 40% male, 74% type 2 diabetes). During median follow-up of 16 months (interquartile range, 14- 18), 15% (n = 123) of NASH F3 patients experienced liver-related events and 3.5% (n = 31) of NASH F4 patients experienced hepatic decompensation. Mean baseline CLDQ-NASH fatigue score in F3 patients was 4.77 +/- 1.36; NASH F3 patients who experienced liver-related events had lower baseline scores: 4.47 +/- 1.36 vs 4.83 +/- 1.35 (P = .0091). The mean fatigue score in F4 was 4.56 +/- 1.44; these scores were lower in patients who decompensated in follow-up: 3.74 +/- 1.31 vs 4.59 +/- 1.43 (P = .0011). The association of lower fatigue scores and risk of liver-related or decompensation events was significant after adjustment for confounders (adjusted hazard ratio per 1 point in fatigue score in F3, 0.85; 95% confidence interval, 0.74-0.97; P = .02; adjusted hazard ratio in F4, 0.62; 95% confidence interval, 0.48-0.81; P = .0004). CONCLUSION: Worse fatigue at baseline is associated with a higher risk of adverse clinical events in patients with NASH-related advanced fibrosis and cirrhosis.