Functional impairment in alcoholic liver disease and non-alcoholic fatty liver disease is significant and persists over 3 years of follow-up.

BACKGROUND AND AIMS: Alcoholic liver disease (ALD) and non-alcoholic fatty liver disease (NAFLD) are common and increasing in prevalence. We examined prevalence and predictors of functional impairment in biopsy-proven ALD and NAFLD. Change in function over 3 years was explored.
METHODS: Validated functional, cognitive, autonomic, and fatigue symptom assessment tools were completed by patients who had attended our liver clinic.
RESULTS: Totals of 224 NAFLD and 107 ALD patients returned the assessment tools. NAFLD and ALD demonstrated comparable functional difficulties, which were significantly worse than controls (p < 0.001) with the proportion of participants experiencing difficulty significantly higher [x (2) 8.93(3), (p = 0.01)]. No significant functional difficulty was demonstrated between those participants who were pre-cirrhotic or cirrhotic. Independent associations were present between difficulty with function in ALD and higher burden of autonomic and cognitive symptoms (p = 0.02) and in NAFLD-increased cognitive difficulty (p < 0.0001), age (p = 0.001), fatigue (p = 0.01), lower albumin (p = 0.02), and bilirubin (p = 0.04). PHAQ scores increased 21 % 2008-2011 {(3.2/15.6) [15.6 (0-93.8)] to 18.75 (0-90.6)}. Functional difficulty of participants alive [15.6 (0-96.9)] was significantly less compared to those who died [40.6 (0-100)] (p = 0.02).
CONCLUSIONS: NAFLD and ALD patients experience significant functional impairment affecting activities of daily living that persists over time. This has implications for the management of liver disease and service provision.