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Cumulative incidence of overt hepatic encephalopathy for patients with liver cirrhosis tested with (a) PHES, (b) CFF, (c) S-ANT1 (cutoff <20 animals), and (d) CCHE score. (a) P < 0.001, (b) P = 0.003, (c) P = 0.001, (d) P < 0.001. CCHE, clinical covert hepatic encephalopathy score; CFF, critical flicker frequency; PHES, Psychometric Hepatic Encephalopathy Score.
