To determine which clinical and laboratory features may influence survival in patients with chronic active hepatitis, we undertook a retrospective study of 204 patients seen on this unit over a 15-year period and applied logistic regression analysis. One hundred and six patients had autoimmune chronic active hepatitis, 69‘cryptogenic’chronic active hepatitis (no autoimmune markers or other aetiological factors identified), and 29 were HBsAg-seropositive. Variceal haemorrhage, encephalopathy and ascites were common presenting features in the cryptogenic group while the presence of jaundice and other immunopathic diseases did not differ between the groups. Cirrhosis was more common at presentation in the cryptogenic group. Remission was induced with corticosteroids and azathioprine in 82 per cent of patients with autoimmune chronic active hepatis and in 77 per cent of patients with cryptogenic chronic active hepatitis and the annual relapse rate was similar in the autoimmune and cryptogenic groups. Five-year survival was 87 per cent in the autoimmune group, 65 per cent in the cryptogenic group, and 80 per cent in those with HBsAg-positive disease, and on logistic regression analysis, the presence of cirrhosis at presentation was the only independent factor which adversely affected survival. Overall survival in the cirrhotic patients at five and 12 years was 63 and 48 per cent respectively compared with 95 and 92 per cent in those without cirrho
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